211-446: In American football , the specific role that a player takes on the field is referred to as their "position". Under the modern rules of American football, both teams are allowed 11 players on the field at one time and have "unlimited free substitutions", meaning that they may change any number of players during any "dead ball" situation. This has resulted in the development of three task-specific "platoons" of players within any single team:
422-477: A Super Bowl victory: Doug Williams in 1988 , Russell Wilson , who is multiracial , in 2014 , and Patrick Mahomes ( biracial ) in 2020 , 2023 , and 2024 . However, numerous quarterbacks with African ancestry did start the Super Bowl since the 2010s, including four in a row ( Super Bowl XLVII , Super Bowl XLVIII , Super Bowl XLIX , Super Bowl 50 ). Quarterbacks with known black ancestry have also won
633-422: A gridiron in appearance. Other major rule changes included a reduction of the field size to 110 by 53 + 1 ⁄ 3 yards (100.6 m × 48.8 m) and the adoption of a scoring system that awarded four points for a touchdown, two for a safety and a goal following a touchdown , and five for a goal from the field . Additionally, tackling below the waist was legalized, and a static line of scrimmage
844-403: A halftime period, and the first and third quarters are followed by a short break. Before the game starts, the referee and each team's captain meet at midfield for a coin toss . The visiting team can call either "heads" or "tails"; the winner of the toss chooses whether to receive or kick off the ball or which goal they wish to defend. They can defer their choice until the second half. Unless
1055-408: A holder on placekicks or as a punter , and will often play a key role in practice, serving as the upcoming opponent's quarterback during the preceding week's practices. A backup quarterback may also be put in during " garbage time " (when the score is so lopsided and the time left in the game is so short that the outcome cannot realistically be changed), or start a meaningless late-season game (either
1266-431: A " kickoff specialist ", handles kickoffs. Most, however, use a single kicker for both jobs, and rarely, the same player may also punt . Kickoff specialists are the kickers of kickoffs. In most cases, the kickoff specialist is also the placekicker, and sometimes the punter. Teams may employ pure kickoff specialists if they feel neither their kicker nor punter is good enough at kickoffs. Due to their specialized nature and
1477-410: A "check-down" or "safety valve" when all other receivers on a pass play are covered. The " fullback " is often larger and stronger than the tailback and acts primarily as a blocker, though the fullback may also be used for catching passes or for rushing as a tailback does. Fullbacks often line up closer to the line of scrimmage than tailbacks do in order to block for them on rushing plays. A "wing-back" or
1688-403: A "scramble") to avoid being sacked by the defense. Depending on the offensive scheme used by their team, the quarterback's role can vary. In systems like the triple option , the quarterback will only pass the ball a few times per game, if at all, while the pass-heavy spread offense , as run by schools like Texas Tech , requires quarterbacks to throw the ball on most plays. The passing game
1899-485: A "slot-back" is a term for a running back who lines up behind the line of scrimmage outside the tackle or tight end on either side of the offensive line. Slot-backs are usually only found in certain offensive alignments, such as the flexbone formation . There also exists a similar position, known as the " H-back ", that is actually considered a modification of the normal tight end position. Wide receivers are pass-catching specialists. Typically fast and tall, their main job
2110-403: A "split end" and is counted among the seven required players on the line of scrimmage. A wide receiver who lines up behind the line (and thus counts as one of the four backs) is called the "flanker". A wide receiver who lines up between the outermost wide receiver and the offensive line is said to be "in the slot" and is called the "slot receiver". A wide receiver who can play running back is called
2321-401: A 10-yard-long chain between them, are used to measure for a first down. The chain crew stays on the sidelines during the game, but if requested by the officials they will briefly bring the chains on to the field to measure. A typical chain crew will have at least three people—two members of the chain crew will hold either of the two sticks, while a third will hold the down marker. The down marker,
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#17327758638462532-525: A PAT attempt or successful field goal, the scoring team must kick the ball off to the other team. A safety is scored when the ball carrier is tackled in the carrier's own end zone. Safeties are worth two points, which are awarded to the defense. In addition, the team that conceded the safety must kick the ball to the scoring team via a free kick . Football games are played on a rectangular field that measures 120 yards (110 m) long and 53 + 1 ⁄ 3 yards (48.8 m) wide. Lines marked along
2743-459: A backup quarterback as their holder on placekicks. A benefit of using quarterbacks as holders is that it would be easier to pull off a fake field goal attempt, but many coaches prefer to use punters as holders because a punter will have far more time in practice sessions to work with the kicker than any quarterback would. In the Wildcat formation , where a halfback lines up behind the center and
2954-488: A bit faster than the nose tackle. Sometimes called a "middle guard", or "nose guard", nose tackles play in the center of the defensive line. Their function is to clog the middle of the offense's line and stop most run plays (more commonly fullback dives, plunges and sneaks). They line up directly in front of the offense's center, almost nose-to-nose, hence the name. This position is used in 3-4 formations, or goal line situations. Most nose tackles are 320-350 pounds, and are
3165-528: A common draft that would take place each year, and it instituted an annual World Championship game to be played between the champions of each league. This championship game began play at the end of the 1966 season. Once the merger was completed, it was no longer a championship game between two leagues and reverted to the NFL championship game, which came to be known as the Super Bowl . College football maintained
3376-598: A feat the Professional Football Researchers Association compared to "selling refrigerators to Eskimos ". Princeton, Harvard, Yale, and Columbia then agreed to intercollegiate play using a form of rugby union rules with a modified scoring system. These schools formed the Intercollegiate Football Association , although Yale did not join until 1879. Yale player Walter Camp , now regarded as
3587-453: A field goal instead. A group of officials, the chain crew, keeps track of both the downs and the distance measurements. On television, a yellow line is electronically superimposed on the field to show the first down line to the viewing audience. There are two categories of kicks in football: scrimmage kicks, which can be executed by the offensive team on any down from behind or on the line of scrimmage, and free kicks. The free kicks are
3798-459: A five-cent piece. By extension, a formation with a sixth defensive back ( dimeback ) is called a "dime package" because it employs a second nickelback and the U.S. 10-cent dime coin is equal to two nickels. Although it is a rare occurrence, a team may also use seven or eight defensive backs on a play, as well. Defensive formations are often known by a numerical code indicating the number of players at each position. The two most common formations are
4009-428: A game between Yale and Princeton, both teams used this strategy to maintain their undefeated records. Each team held the ball, gaining no ground, for an entire half, resulting in a 0–0 tie. This "block game" proved extremely unpopular with both teams' spectators and fans. A rule change was necessary to prevent this strategy from taking hold, and a reversion to the scrum was considered. However, Camp successfully proposed
4220-598: A game for the Allegheny Athletic Association against the Pittsburgh Athletic Club . This is the first recorded instance of a player being paid to participate in a game of American football , although many athletic clubs in the 1880s offered indirect benefits, such as helping players attain employment, giving out trophies or watches that players could pawn for money, or paying double in expense money. Despite these extra benefits,
4431-400: A game, and even a starter at most other positions rarely plays every snap, a team's starting quarterback often remains in the game for every play, which means that a team's primary backup may go an entire season without taking a meaningful offensive snap. While their primary role may be to be available in case of injury to the starter, the backup quarterback may also have additional roles such as
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#17327758638464642-533: A large stick with a dial on it, is flipped after each play to indicate the current down and is typically moved to the approximate spot of the ball. The chain crew system has been used for over 100 years and is considered an accurate measure of distance, rarely subject to criticism from either side. Football is a full-contact sport, and injuries are relatively common. Most injuries occur during training sessions, particularly ones that involve contact between players. To try to prevent injuries, players are required to wear
4853-564: A league-suggested numbering scheme. Although the sport is played almost exclusively by men, women are eligible to play in high school, college, and professional football. No woman has ever played in the NFL, but women have played in high school and college football games. In 2018, 1,100 of the 225,000 players in Pop Warner Little Scholars youth football were girls, and around 11% of the 5.5 million Americans who report playing tackle football are female according to
5064-408: A long circumference of 28 to 28 + 1 ⁄ 2 inches (71 to 72 cm), and a short circumference of 21 to 21 + 1 ⁄ 4 inches (53 to 54 cm). In college and high school play the ball has a long axis of 10 + 7 ⁄ 8 to 11 + 7 ⁄ 16 inches (27.6 to 29.1 cm), a long circumference of 27 + 3 ⁄ 4 to 28 + 1 ⁄ 2 inches (70 to 72 cm), and
5275-420: A minimum of 10 feet (3.0 m) on high school fields. Goal posts are padded at the base, and orange ribbons are normally placed at the tip of each upright as indicators of wind strength and direction. The football itself is a prolate spheroid leather ball, similar to the balls used in rugby or Australian rules football . To contain the compressed air within it, a pig's bladder was commonly used before
5486-704: A national champion of college football. The first was the Bowl Coalition , in place from 1992 to 1994. This was replaced in 1995 by the Bowl Alliance , which gave way to the Bowl Championship Series (BCS) in 1997. The BCS arrangement proved to be controversial , and was replaced in 2014 by the College Football Playoff (CFP). A football game is played between two teams of 11 players each. Playing with more on
5697-678: A no-huddle scheme, as did Ben Roethlisberger of the Pittsburgh Steelers . Throughout football history, the racial makeup of quarterbacks did not reflect the racial makeup of the sport. Black quarterbacks especially faced barriers in breaking into the starting job at the highest levels. The first black starting quarterback in the Super Bowl era was Marlin Briscoe in 1968, who started for the American Football League 's Denver Broncos during part of one season; he
5908-572: A number of forward-passing tailbacks became stars, including Sammy Baugh of the Washington Redskins . In 1939, University of Chicago head football coach Clark Shaughnessy made modifications to the T-formation, a formation that put the quarterback behind the center and had him receive the snap directly. Shaughnessy altered the formation by having the linemen be spaced further apart, and he began having players go in motion behind
6119-428: A pass hits the ground without a player having caught it. A forward pass can be legally attempted only if the passer is behind the line of scrimmage; only one forward pass can be attempted per down. As in rugby, players can also pass the ball backwards at any point during a play. In the NFL, a down also ends immediately if the runner's helmet comes off. The offense is given a series of four plays, known as downs . If
6330-504: A pass, or more rarely, forcing a turnover on downs . Unlike the offensive team, the rules of the sport do not restrict the defensive team into certain positions. A defensive player may line up anywhere on his side of the line of scrimmage and perform any legal action. Over time, however, defensive roles have become defined into three main sets of players that encompass several individual positions. Like their offensive counterparts, defensive linemen (also called rushers) line up directly on
6541-504: A pass-heavy league, in part due to further rule changes that prescribed harsher penalties for hitting the quarterback and for hitting defenseless receivers as they awaited passes. Passing in wide-open offenses has also been an emphasis at the high school and college levels, and professional coaches have devised schemes to fit the talents of new generations of quarterbacks. While quarterbacks and team captains usually called plays in football's early years, today coaches often decide which plays
American football positions - Misplaced Pages Continue
6752-412: A prominent athlete and rugby player at Yale University , pushed through a change in rules at a meeting in 1880 that established a line of scrimmage and allowed for the football to be snapped to a quarterback. The change was meant to allow for teams to strategize their play more thoroughly and retain possession more easily than was possible in the chaos of a scrummage in rugby. In Camp's formulation,
6963-427: A quarter ends, play continues until the down is completed. If certain fouls are committed during play while time has expired, the quarter may be extended through an untimed down . Games last longer than their defined length due to play stoppages—the average NFL game lasts slightly over three hours. Time in a football game is measured by the game clock. An operator is responsible for starting, stopping and operating
7174-569: A rarity in the early 2000s, although he never led his team to a Super Bowl. In the 2010s, quarterbacks with dual-threat capabilities have become more popular. Current NFL quarterbacks considered to be dual-threats include Russell Wilson , Lamar Jackson , and Josh Allen . Some teams employ a strategy that involves the use of more than one quarterback during the course of a game. This is more common at lower levels of football, such as high school or small college, but rare in major college or professional football. There are four circumstances in which
7385-449: A relative rarity among other teams; between 1920 and 1932, there were three times as many running plays as there were passing plays. Early NFL quarterbacks typically were responsible for calling the team's offensive plays with signals before the snap. The use of the huddle to call plays originated with Stagg in 1896, but only began to be used regularly in college games in 1921. In the NFL, players were typically assigned numbers, as were
7596-414: A round ball that could not be picked up or carried. It could, however, be kicked or batted with the feet, hands, head, or sides, with the objective being to advance it into the opponent's goal. Rutgers won the game 6–4. Collegiate play continued for several years with games played using the rules of the host school. Representatives of Yale, Columbia , Princeton and Rutgers met on October 19, 1873, to create
7807-422: A rule in 1882 that limited each team to three downs , or tackles, to advance the ball 5 yards (4.6 m). Failure to advance the ball the required distance within those three downs would result in control of the ball being forfeited to the other team. This change effectively made American football a separate sport from rugby, and the resulting five-yard lines added to the field to measure distances made it resemble
8018-453: A running play, the quarterback will then hand or pitch the ball backwards to a halfback or fullback . On a passing play, the quarterback is almost always the player responsible for trying to throw the ball downfield to an eligible receiver. Additionally, the quarterback may run with the football himself, as part of a designed play like the option run or quarterback sneak , or the quarterback could make an impromptu run on their own (called
8229-542: A running quarterback and a passing quarterback in an option or wishbone offense. In Canadian football, quarterback sneaks or other runs in short-yardage situations tend to be successful as a result of the distance between the offensive and defensive lines being one yard. Drew Tate , a quarterback for the Calgary Stampeders , was primarily used in short-yardage situations and led the CFL in rushing touchdowns during
8440-497: A season-ending injury that cost him the 1991 NFL season and was supplanted by Young. Young was injured midway through the season, but Bono held the starting job (despite Young's recovery) until Bono's own injury let Young reclaim it. Montana also missed most of the 1992 NFL season , making only one appearance, then was traded away at his request to take over as the starter for the Kansas City Chiefs ; upon retirement, he
8651-436: A secondary signal. Women can serve as officials; Sarah Thomas became the NFL's first female official in 2015. The seven officials (of a standard seven-man crew; lower levels of play up to the college level use fewer officials) on the field are each tasked with a different set of responsibilities: Another set of officials, the chain crew , are responsible for moving the chains. The chains, consisting of two large sticks with
American football positions - Misplaced Pages Continue
8862-536: A set of equipment. At a minimum players must wear a football helmet and a set of shoulder pads , but individual leagues may require additional padding such as thigh pads and guards, knee pads, chest protectors, and mouthguards . Most injuries occur in the lower extremities, particularly in the knee, but a significant number also affect the upper extremities. The most common types of injuries are strains , sprains , bruises , fractures , dislocations , and concussions . Quarterback The quarterback ( QB )
9073-410: A short circumference of 20 + 3 ⁄ 4 to 21 + 1 ⁄ 4 inches (53 to 54 cm). Football games last for a total of 60 minutes in professional and college play and are divided into two halves of 30 minutes and four quarters of 15 minutes. High school football games are 48 minutes in length with two halves of 24 minutes and four quarters of 12 minutes. The two halves are separated by
9284-407: A short period of time) have been centered around a single starting quarterback; the one exception was the Washington Redskins under head coach Joe Gibbs who won three Super Bowls with three different starting quarterbacks from 1982 to 1991. Many of these NFL dynasties ended with the departure of their starting quarterback. On a team's defense, the middle linebacker is regarded as "quarterback of
9495-456: A standard set of rules for use by all schools. Teams were set at 20 players each, and fields of 400 by 250 feet (122 m × 76 m) were specified. Harvard abstained from the conference, as they favored a rugby-style game that allowed running with the ball. After playing McGill University using both American (known as "the Boston game ") for the first game and Canadian (rugby) rules for
9706-470: A star quarterback's high salary may prevent the signing of other expensive star players as the team has to stay under the hard salary cap . One of the major contributing factors behind the success and longevity of the New England Patriots ' Brady–Belichick era was the willingness of starting quarterback Tom Brady to consistently take pay cuts despite his elite performance, which allowed
9917-416: A strong safety, and a free safety). Special teams are units that are on the field during kicking plays. While many players who appear on offensive or defensive squads also play similar roles on special teams (offensive linemen to block or defensive players to tackle), there are some specialist roles that are unique to the kicking game. Kicking specialists are in charge of kicking the football. Depending on
10128-449: A tradition of postseason bowl games . Each bowl game was associated with a particular conference and earning a spot in a bowl game was the reward for winning a conference. This arrangement was profitable, but it tended to prevent the two top-ranked teams from meeting in a true national championship game, as they would normally be committed to the bowl games of their respective conferences. Several systems have been used since 1992 to determine
10339-507: A two-quarterback system may be used. The first is when a team is in the process of determining which quarterback will eventually be the starter, and may choose to use each quarterback for part of the game in order to compare the performances. For instance, the Seattle Seahawks ' Pete Carroll used the preseason games in 2012 to select Russell Wilson as the starting quarterback over Matt Flynn and Tarvaris Jackson . The second
10550-562: A variety of formations. Harvard's team put seven men on the line of scrimmage, with three halfbacks who alternated at quarterback and a lone fullback . Princeton put six men on the line and had one designated quarterback, while Yale used seven linemen, one quarterback and two halfbacks who lined up on either side of the fullback. This was the origin of the T-formation , an offensive set that remained in use for many decades afterward and gained popularity in professional football starting in
10761-465: A wide array of offensive formations to take advantage of different player skills and game situations. The following positions are standard in nearly every game, though different teams will use different arrangements of them, dependent on their individual game plans. The offensive line is primarily responsible for blocking the defensive line of the opposition, in order to protect their own quarterback. During normal play, offensive linemen do not handle
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#173277586384610972-446: A wide back. Tight ends play on either side of the offensive line and directly next to the tackles. Tight ends are considered "hybrid players" because they are a cross between a wide receiver and an offensive lineman. Because they play next to the other offensive linemen, they are very frequently called on to block, especially on running plays. However, because they are eligible receivers, they may also catch passes. The position known as
11183-404: Is a need to cover additional receivers. Cornerbacks attempt to prevent successful passes by either swatting the airborne ball away from the receiver or by catching the pass themselves . In rushing situations, their job is to contain the runner, either by directing them back to the middle of the field to be tackled by the middle line backers, or by forcing them out of bounds. The safeties are
11394-449: Is a position in gridiron football who are members of the offensive side of the ball and mostly line up directly behind the offensive line . In modern American football , the quarterback is usually considered the leader of the offense, and is often responsible for calling the play in the huddle . The quarterback also touches the ball on almost every offensive play, and is almost always the offensive player that throws forward passes . When
11605-595: Is a starter–reliever system, in which the starting quarterback splits the regular season playing time with the backup quarterback, although the former will start playoff games. This strategy is rare, and was last seen in the NFL in the "WoodStrock" combination of Don Strock and David Woodley , which took the Miami Dolphins to the Epic in Miami in 1982 and Super Bowl XVII the following year. The starter–reliever system
11816-425: Is called on the offense. There are two main ways the offense can advance the ball: running and passing . In a typical play, the center passes the ball backwards and between their legs to the quarterback in a process known as the snap . The quarterback then either hands the ball off to a running back, throws the ball, or runs with it. The play ends when the player with the ball is tackled or goes out-of-bounds or
12027-437: Is caught or recovered behind the line of scrimmage. If it is touched or recovered by the kicking team beyond this line, it becomes dead at the spot where it was touched. The kicking team is prohibited from interfering with the receiver's opportunity to catch the ball. The receiving team has the option of signaling for a fair catch , which prohibits the defense from blocking into or tackling the receiver. The play ends as soon as
12238-400: Is dependent on his success, the quarterback is responsible for receiving the play from the coaches on the sideline and communicating the play to the other offensive players in the huddle , and serves as the leader of the team's passing game. The quarterback may need to make late changes to the intended play at the line of scrimmage (known as an "audible") depending on the defensive alignment. At
12449-584: Is distinct from a one-off situation in which a starter is benched in favor of the backup because the switch is part of the game plan (usually if the starter is playing poorly for that game), and the expectation is that the two players will assume the same roles game after game. The third is if a coach decides that the team has two quarterbacks who are equally effective and proceeds to rotate the quarterbacks at predetermined intervals, such as after each quarter or after each series. Southern California high school football team Corona Centennial operated this model during
12660-532: Is emphasized heavily in the Canadian Football League (CFL), where there are only three downs (as opposed to the four downs used in American football), a larger field of play and an extra eligible receiver. Different skillsets are required of the quarterback depending upon the offensive system. Quarterbacks that perform well in a pass-heavy spread offense system, a popular offensive scheme in
12871-403: Is known as a two-point conversion . In general, the extra point is almost always successful, while the two-point conversion is a much riskier play with a higher probability of failure; accordingly, extra point attempts are far more common than two-point conversion attempts. A field goal (FG), worth three points, is scored when the ball is place kicked or drop kicked through the uprights and over
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#173277586384613082-433: Is referred to as a "pulling guard". Two tackles play outside of the guards. Their role is primarily to block on both running and passing plays. The area from one tackle to the other is an area of "close line play" in which blocks from behind, which are prohibited elsewhere on the field, are allowed. For a right-handed quarterback, the left tackle is charged with protecting the quarterback from being hit from behind (known as
13293-407: Is responsible for all kicking plays. The special teams unit of the team in control of the ball tries to execute field goal (FG) attempts, punts , and kickoffs , while the opposing team's unit will aim to block or return them. Three positions are specific to the field goal and PAT (point-after-touchdown) unit: the placekicker (K or PK), holder (H), and long snapper (LS). The long snapper's job
13504-672: Is the first player (and third person after the team owner and head coach) to be presented with the Lamar Hunt Trophy / George Halas Trophy (after winning the AFC/NFC Conference title) and the Vince Lombardi Trophy (after a Super Bowl victory). The starting quarterback of the victorious Super Bowl team is often chosen for the " I'm going to Disney World! " campaign (which includes a trip to Walt Disney World for them and their families), whether they are
13715-421: Is to block members of the defensive line from tackling the ball carrier on running plays or sacking the quarterback on passing plays. The leader of the offensive line is the center, who is responsible for snapping the ball to the quarterback, blocking, and for making sure that the other linemen do their jobs during the play. On either side of the center are the guards (G), while tackles (T) line up outside
13926-405: Is to run pass routes and get open (i.e. find a position with no near defender) for passes, although they are occasionally called on to block. Wide receivers generally line up split "wide" near the sidelines at the start of the play. Wide receivers, like running backs, come in different varieties depending on exactly where they line up. A wide receiver who is directly on the line of scrimmage is called
14137-437: Is to snap the football to the holder, who will catch and position it for the placekicker. There is not usually a holder on kickoffs, because the ball is kicked off a tee; however, a holder may be used in certain situations, such as if wind is preventing the ball from remaining upright on the tee. The player on the receiving team who catches the ball is known as the kickoff returner (KR). The positions specific to punt plays are
14348-406: Is typically the deepest player on the defense, providing help on long pass plays. In certain formations, the defense may remove a linebacker or a defensive lineman to bring in extra pass coverage in the form of extra defensive backs. A formation with five defensive backs is often called a "nickel" formation, and the fifth (extra) defensive back is called a " nickelback " after the U.S. nickel coin ,
14559-607: The 1958 NFL Championship game between the Baltimore Colts and the New York Giants , still referred to as the "Greatest Game Ever Played". The game, a 23–17 overtime victory by the Colts, was seen by millions of television viewers and had a major influence on the popularity of the sport. This, along with the innovations introduced by the new American Football League (AFL) in the early 1960s, helped football to become
14770-483: The 1998 season a "nightmare" because of poor play by Ryan Leaf and Craig Whelihan and, from the rookie Leaf, obnoxious behavior toward teammates. Although their 1999 season replacements Jim Harbaugh and Erik Kramer were not stars, linebacker Junior Seau said, "You can't imagine the security we feel as teammates knowing we have two quarterbacks who have performed in this league and know how to handle themselves as players and as leaders". Commentators have noted
14981-503: The 2014 season with 10 scores as the backup to Bo Levi Mitchell . This strategy had all but disappeared from professional American football, but returned to some extent with the advent of the "wildcat" offense. There is debate within football circles as to the effectiveness of the so-called "two-quarterback system". Many coaches and media personnel remain skeptical of the model. Teams such as USC (Southern California), OSU (Oklahoma State), Northwestern and smaller West Georgia have utilized
15192-427: The 3–4 defense and the 4–3 defense , where the first number refers to the number of defensive linemen, and the second number refers to the number of linebackers (the number of defensive backs can be inferred, since there must be eleven players on the field). Thus, a 3–4 defense consists of three defensive linemen (usually a nose tackle and two defensive ends), four linebackers, and four defensive backs (two cornerbacks,
15403-523: The Associated Press NFL Most Valuable Player Award in recent years, including Cam Newton , Patrick Mahomes , and Lamar Jackson . Some black quarterbacks claim to have experienced bias towards or against them due to their race. Despite his ability to both pass and run effectively, current Cleveland Browns signal-caller Deshaun Watson despises being called a dual-threat quarterback because he believes
15614-513: The Burnside rules , a set of rules proposed by John Meldrum "Thrift" Burnside, the captain of the University of Toronto's football team . The change from a scrummage to a scrimmage made it easier for teams to decide what plays they would run before the snap. At first, the captains of college teams were put in charge of play calling, indicating with shouted codes which players would run with
15825-474: The Green Bay Packers , along with several other NFL figures of his era, was a consistent proponent of the forward pass. The Packers found success in the 1920s and 1930s using variations on the single-wing that emphasized the passing game. Packers quarterback Red Dunn and New York Giants and Brooklyn Dodgers quarterback Benny Friedman were the leading passers of their era, but passing remained
16036-527: The Super Bowl MVP or not; examples include Joe Montana ( XXIII ), Trent Dilfer ( XXXV ), Peyton Manning ( 50 ) and Tom Brady ( LIII ). Dilfer was chosen even though teammate Ray Lewis was the MVP of Super Bowl XXXV, due to the bad publicity from Lewis' murder trial the previous year. Being able to rely on a quarterback is vital to team morale. San Diego Chargers safety Rodney Harrison called
16247-411: The kickoff , which starts the first and third quarters and overtime and follows a try attempt or a successful field goal; the safety kick follows a safety. On a kickoff, the ball is placed at the 35-yard line of the kicking team in professional and college play and at the 40-yard line in high school play. The ball may be drop kicked or place kicked. If a place kick is chosen, the ball can be placed on
16458-405: The personal protector , is a blocking back who lines up approximately 1–3 yards behind the line of scrimmage in punting situations. Because the punter plays so far back, the back frequently makes the line calls and lets the long snapper know when the punter is ready to receive the ball. Their primary role is to act as the last line of defense for the punter; however, upbacks occasionally receive
16669-407: The punter (P), long snapper, upback , and gunner . The long snapper snaps the football directly to the punter, who then drops and kicks it before it hits the ground. Gunners line up split outside the line and race down the field, aiming to tackle the punt returner (PR)—the player who catches the punt. Upbacks line up a short distance behind the line of scrimmage, providing additional protection to
16880-422: The " H-back " is a tight end who lines up behind the line of scrimmage, and is thus counted as one of the four "backs", but their role is otherwise similar to that of other tight ends. Depending on the style of offense the coaches have designed, the game situation, and the relative skill sets of the players, teams may run formations that contain any number of running backs, wide receivers, and tight ends, so long as
17091-471: The "Father of American Football", secured rule changes in 1880 that reduced the size of each team from 15 to 11 players and instituted the snap to replace the chaotic and inconsistent scrum . While the game between Rutgers and Princeton is commonly considered the first American football game, several years prior in 1862, the Oneida Football Club formed as the oldest known football club in
17302-464: The "Father of American Football", established the snap , the line of scrimmage , eleven-player teams, and the concept of downs. Later rule changes legalized the forward pass , created the neutral zone , and specified the size and shape of the football. The sport is closely related to Canadian football , which evolved in parallel with and at the same time as the American game, although its rules were developed independently from those of Camp. Most of
17513-491: The "blind side"), and this is usually the most skilled player on the offensive line. Like a guard, the tackle may have to "pull", on a running play, when there is a tight end on their side. Tackles typically have a taller, longer build than interior offensive linemen, due to the need to keep separation from defensive linemen in pass blocking situations. They also tend to have quick footwork skills, often engaging against containing or rushing defensive ends. Four backs line up behind
17724-436: The "defense", is the team that begins a play from scrimmage without possession of the ball. The objective of the defensive team is to prevent the other team from scoring and win possession of the ball for their side. The defense accomplishes this by forcing the offense to turn the ball over by either preventing them from achieving a first down and forcing them to punt, forcing and recovering an offensive fumble , intercepting
17935-440: The "disproportionate importance" of the quarterback, describing it as the "most glorified—and scrutinized—position" in team sports. It is believed that "there is no other position in sports that 'dictates the terms' of a game the way quarterback does", whether that impact is positive or negative, as "Everybody feeds off of what the quarterback can and cannot do...Defensively, offensively, everybody reacts to what threats or non-threats
18146-423: The "ends" of the defensive line. Their function is to attack the passer or stop offensive runs to the outer edges of the line of scrimmage, which is often referred to as "containment". The faster of the two is usually placed on the right side of the defensive line (quarterback's left) because that is a right-handed quarterback's blind side. Defensive linemen will often take a stance with one or both of their hands on
18357-422: The "quarter-back" was the person who received a ball snapped back with another player's foot. Originally he was not allowed to run forward of the line of scrimmage: A scrimmage takes place when the holder of the ball puts it on the ground before him and puts it in play while on-side either by kicking the ball or by snapping it back with his foot. The man who first receives the ball from the snap-back shall be called
18568-410: The 1930s. In 1906, the forward pass was legalized in American football; Canadian football did not adopt the forward pass until 1929. Despite the legalization of the forward pass, the most popular formations of the early 20th century focused mostly on the rushing game. The single-wing formation , a run-oriented offensive set, was invented by football coach Glenn "Pop" Warner around the year 1908. In
18779-490: The 1960s, running plays occurred more frequently than passes. NFL quarterback Milt Plum later stated that during his career (1957–1969) passes typically only occurred on third downs and sometimes on first downs. Quarterbacks only increased in importance as rules changed to favor passing and higher scoring and as football gained popularity on television after the 1958 NFL Championship Game , often referred to as "The Greatest Game Ever Played". Early modern offenses evolved around
18990-460: The 1980s and 1990s. A quarterback controversy results when a team has two capable quarterbacks competing for the starting position. Dallas Cowboys head coach Tom Landry alternated Roger Staubach and Craig Morton on each play, sending in the quarterbacks with the play call from the sideline; Morton started in Super Bowl V , which his team lost, while Staubach started in Super Bowl VI
19201-542: The 2014 football season, rotating quarterbacks after every series. In a game against the Chicago Bears in week 7 of the 1971 season, Dallas Cowboys head coach Tom Landry alternated Roger Staubach and Craig Morton on each play, sending in the quarterbacks with the playcall from the sideline. The fourth, still occasionally seen in major-college football, is the use of different quarterbacks in different game or down-and-distance situations. Generally this involves
19412-542: The AFL New York Jets signed rookie Joe Namath to a then-record $ 437,000 contract (equivalent to $ 4.23 million in 2023). A five-year, $ 40 million NBC television contract followed, which helped to sustain the young league. The bidding war for players ended in 1966 when NFL owners approached the AFL regarding a merger, and the two leagues agreed on one that took full effect in 1970. This agreement provided for
19623-533: The Browns win four AAFC championships in the late 1940s in head coach Paul Brown 's T-formation offense, which emphasized precision timing passes. Cleveland, along with several other AAFC teams, was absorbed by the NFL in 1950 after the dissolution of the AAFC that same year. By the end of the 1940s, all NFL teams aside from the Pittsburgh Steelers used the T-formation as their primary offensive formation. As late as
19834-669: The Comeback Player of the Year he was not re-signed due to an injury and joined the New Orleans Saints as a free agent. Brees and Rivers both retired in 2021, each having been a starter for the Saints and Chargers, respectively, for over a decade. Aaron Rodgers was drafted by the Green Bay Packers as the eventual successor to Brett Favre , though Rodgers served in a backup role for a few years to develop sufficiently for
20045-582: The FCS and 85 scholarship players in the FBS, respectively. Individual players in a football game must be designated with a uniform number between 1 and 99, though some teams may "retire" certain numbers , making them unavailable to players. NFL teams are required to number their players by a league-approved numbering system, and any exceptions must be approved by the commissioner . NCAA and NFHS teams are "strongly advised" to number their offensive players according to
20256-694: The NCAA and NFHS, rarely perform well in the National Football League (NFL), as the fundamentals of the pro-style offense used in the NFL are very different from those in the spread system, while quarterbacks in Canadian football need to be able to throw the ball often and accurately. In general, quarterbacks need to have physical skills such as arm strength, mobility and a quick throwing motion, in addition to intangibles such as competitiveness, leadership, intelligence and downfield vision. In
20467-446: The NCAA, NFHS and CFL; in the NFL, quarterbacks are eligible receivers if they are not lined up directly under center. Often compared to captains of other team sports, before the implementation of NFL team captains in 2007, the starting quarterback was usually the de facto team leader and a well-respected player on and off the field. Since 2007, when the NFL allowed teams to designate several captains to serve as on-field leaders,
20678-641: The NFL, quarterbacks are required to wear a uniform number between 1 and 19. In the National Collegiate Athletic Association (NCAA) and National Federation of State High School Associations (NFHS), quarterbacks are required to wear a uniform number between 1 and 49; in the NFHS, the quarterback can also wear a number between 80 and 89. In the CFL, the quarterback can wear any number from 0 to 49 and 70 to 99. Because of their numbering, quarterbacks are eligible receivers in
20889-460: The Patriots to spend that money elsewhere on additional skill players, with a famous example of this being the signing of Hall of Fame wide receiver Randy Moss in 2007. The quarterback touches the ball on almost every offensive play. Depending on the play calling system , prior to each play the quarterback will usually gather the rest of their team together in a huddle to tell them which play
21100-510: The QB is tackled behind the line of scrimmage , it is called a sack . The position is also colloquially known as the "signal caller" and "field general". In modern American football, the starting quarterback is usually the leader of the offense, and their successes and failures can have a significant impact on the fortunes of their team. Accordingly, the quarterback is among the most glorified, scrutinized, and highest-paid positions in team sports;
21311-456: The Sports and Fitness Industry Association. The role of the offensive unit is to advance the football down the field with the ultimate goal of scoring a touchdown . The offensive team must line up in a legal formation before they can snap the ball. An offensive formation is considered illegal if there are more than four players in the backfield or fewer than five players numbered 50–79 on
21522-544: The T-formation, passing tailbacks, such as Sammy Baugh, would line up as quarterbacks instead. Over the course of the decade, passing yards began to exceed rushing yards for the first time in the history of football. The Cleveland Browns of the late 1940s in the All-America Football Conference (AAFC), a professional league created to challenge the NFL, were one of the teams of that era that relied most on passing. Quarterback Otto Graham helped
21733-586: The United Kingdom, Ireland, New Zealand, and Australia. American football evolved from the sports of rugby and soccer . Rugby, like American football, is a sport in which two competing teams vie for control of a ball, which can be kicked through a set of goalposts or run into the opponent's goal area to score points. What is considered to be the first American football game was played on November 6, 1869 , between Rutgers and Princeton , two college teams. They consisted of 25 players per team and used
21944-468: The United States and Canada and also known as gridiron football , is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense , the team with possession of the oval-shaped football , attempts to advance down the field by running with the ball or throwing it , while the defense , the team without possession of the ball, aims to stop
22155-455: The United States. The team consisted of graduates of Boston's elite preparatory schools and played from 1862 to 1865. The introduction of the snap resulted in an unexpected consequence. Before the snap, the strategy had been to punt if a scrum resulted in bad field position. However, a group of Princeton players realized that, as the snap was uncontested, they could now hold the ball indefinitely to prevent their opponent from scoring. In 1881, in
22366-554: The United States: official time was kept on a scoreboard clock rather than on a watch in the referee's pocket, as the NFL did; optional two-point conversions by pass or run after touchdowns; names on the jerseys of players; and several others, including expansion of the role of minority players, actively recruited by the league in contrast to the NFL. The AFL also signed several star college players who had also been drafted by NFL teams. Competition for players heated up in 1965, when
22577-460: The advent of artificial rubber inside the leather outer shell to sustain crushing forces . At all levels of play, the football is inflated to 12 + 1 ⁄ 2 to 13 + 1 ⁄ 2 psi (86 to 93 kPa), or just under one atmosphere, and weighs 14 to 15 ounces (400 to 430 g); beyond that, the exact dimensions vary slightly. In professional play the ball has a long axis of 11 to 11 + 1 ⁄ 4 inches (28 to 29 cm),
22788-407: The ball (aside from the snap from center), unless the ball is fumbled by a ball carrier, a pass is deflected, or a player who is normally an offensive lineman takes a different position on the field. The offensive line consists of: The center is the player who begins the play from scrimmage by snapping the ball to the quarterback. As the name suggests, the center usually plays in the middle of
22999-488: The ball and how the men on the line were supposed to block . Yale later used visual signals, including adjustments of the captain's knit hat, to call plays. Centers could also signal plays based on the alignment of the ball before the snap. In 1888, however, Princeton University began to have its quarterback call plays using number signals. That system caught on and quarterbacks began to act as directors and organizers of offensive play. Early on, quarterbacks were used in
23210-408: The ball as far downfield as possible. This is usually done only on fourth down. Almost all other special teams positions double as backups for skill positions. The holder is usually positioned 7–8 yards from the line of scrimmage and holds the ball for the placekicker to kick. The player occupying this position is often a backup quarterback or a punter because of their "good hands", feel for
23421-457: The ball back. These are usually among the fastest players on a team and typically play either wide receiver or cornerback, as well. However, due to the relatively high likelihood of injury during kick returns, most professional teams will not regularly use their very best WRs or CBs as returners. Teams may also use the same player for both return positions or have a specific returner for punts and another for kickoffs . The upback , also known as
23632-401: The ball from the center, the quarterback has three basic options to advance the ball: he may run the ball himself (most commonly referred to as scrambling ), he may hand it to another eligible ball carrier to run with it, or he may execute a forward pass to a player further up the field. Running backs are players who line up behind the offensive line in a position to receive a hand-off from
23843-435: The ball is caught, and the ball may not be advanced. Officials are responsible for enforcing game rules and monitoring the clock. All officials carry a whistle and wear black-and-white striped shirts and black hats except for the referee, whose hat is white. Each carries a weighted yellow flag that is thrown to the ground to signal that a foul has been called. An official who spots multiple fouls will throw their hat as
24054-478: The ball off, throws it, or runs with it. The primary role of the halfback, also known as the running back or tailback, is to carry the ball on running plays. Halfbacks may also serve as receivers. Fullbacks tend to be larger than halfbacks and function primarily as blockers, but they are sometimes used as runners in short-yardage or goal-line situations. They are seldom used as receivers. The offensive line (OL) consists of several players whose primary function
24265-506: The ball themselves. This was the primary strategy of the single wing offense which was popular during the early decades of the 20th century. After the growth of the forward pass, the role of the quarterback changed again. The quarterback would later be returned to his role as the primary receiver of the snap after the advent of the T-formation offense, especially under the success of former single wing tailback, and later T-formation quarterback, Sammy Baugh . The requirement to stay behind
24476-467: The ball through the opponent's goalposts for a field goal . The team with the most points at the end of the game wins. American football evolved in the United States, originating from the sports of soccer and rugby . The first American football game was played on November 6, 1869 , between two college teams, Rutgers and Princeton , using rules based on the rules of soccer at the time. A set of rule changes drawn up from 1880 onward by Walter Camp ,
24687-504: The ball, and experience taking snaps from a long snapper or center during plays from scrimmage. A holder is occasionally used on kickoffs if the weather or field conditions repeatedly cause the ball to fall off the tee. The long snapper is a specialized center who snaps the ball directly to the holder or punter. They are usually distinct from a regular center, as the ball often has to be snapped much further back on kicking plays than on standard offensive plays. Long snappers are generally
24898-424: The biggest players on the roster. This position is the most physically demanding, due to being forced into constant double or triple teams, and needing enough speed to collapse the interior of the offensive line. Sometimes, nose tackles are used in 4-3 defenses and are either positioned on the quarterbacks blind side, or directly in front of the center. Defensive ends line up outside of the defensive tackles and are
25109-403: The center. Like all interior linemen, their function is to block on both running and passing plays. On some plays, rather than blocking straight ahead, a guard will "pull", whereby the guard comes out of their position in line to lead block for a ball carrier, on plays known as " traps " (for inside runs), " sweeps " (for outside runs), and " screens " (for passing plays). In such cases, the guard
25320-404: The college level. Typically, a quarterback with exceptional quickness is used in an option offense, which allows the quarterback to hand the ball off, run it themself or pitch it to a running back shadowing them to the outside. This type of offense forces defenders to commit to the running back up the middle, the quarterback around the end or the running back trailing the quarterback. It is then that
25531-413: The crossbars of the defense's goalposts. In practice, almost all field goal attempts are done via place kick. While drop kicks were common in the early days of the sport, the shape of modern footballs makes it difficult to reliably drop kick the ball. The last successful scoring play by drop kick in the NFL was accomplished in 2006; prior to that, the last successful drop kick had been made in 1941. After
25742-402: The defense is ready to blitz —that is, to send additional defenders across the line of scrimmage in an attempt to tackle the quarterback or short their ability to pass—the quarterback may want to change the play. To do this, the quarterback yells a special code, like "Blue 42" or "Texas 29", which tells the offense to switch to a specific play or formation. Quarterbacks can also " spike " (throw
25953-399: The defense is to prevent the offense from scoring by tackling the ball carrier or by forcing turnovers . Turnovers include interceptions (a defender catching a forward pass intended for the offense) and forced fumbles (taking possession of the ball from the ball-carrier). The defensive line (DL) consists of defensive ends (DE) and defensive tackles (DT). Defensive ends line up on
26164-416: The defense" and is often the defensive leader, since they must be as smart as they are athletic. The middle linebacker (MLB), sometimes known as the "Mike", is the only inside linebacker in the 4–3 scheme. Compared to other positions in gridiron football, the backup quarterback gets considerably less playing time than the starting quarterback. While players at many other positions may rotate in and out during
26375-430: The defensive backfield. They are divided into two types: middle linebackers (MLB) and outside linebackers (OLB). Linebackers tend to serve as the defensive leaders and call the defensive plays, given their vantage point of the offensive backfield. Their roles include defending the run, pressuring the quarterback, and tackling backs, wide receivers, and tight ends in the passing game. The defensive backfield , often called
26586-440: The early days of the professional National Football League (NFL), which was founded in 1920, games were largely low-scoring affairs. Two-thirds of all games in the 1920s were shutouts, and quarterbacks/tailbacks usually passed only out of desperation. In addition to a reluctance to risk turnovers by passing, various rules existed that limited the effectiveness of the forward pass: passers were required to drop back five yards behind
26797-472: The ends and sides of the field are known as the end lines and sidelines . Goal lines are marked 10 yards (9.1 m) inward from each end line. Weighted pylons are placed the sidelines on the inside corner of the intersections with the goal lines and end lines. White markings on the field identify the distance from the end zone. Inbound lines, or hash marks , are short parallel lines that mark off 1-yard (0.91 m) increments. Yard lines , which can run
27008-404: The ends of the line, while defensive tackles line up inside, between the defensive ends. The primary responsibilities of defensive ends and defensive tackles are to stop running plays on the outside and inside, respectively, to pressure the quarterback on passing plays, and to occupy the line so that the linebackers can break through. Linebackers line up behind the defensive line but in front of
27219-505: The features that distinguish American football from rugby and soccer are also present in Canadian football. The two sports are considered the primary variants of gridiron football . American football is the most popular sport in the United States in terms of broadcast viewership audience. The most popular forms of the game are professional and college football , with the other major levels being high-school and youth football. As of 2022 , nearly 1.04 million high-school athletes play
27430-468: The field is punishable by a penalty. Teams may substitute any number of their players between downs; this "platoon" system replaced the original system, which featured limited substitution rules, and has resulted in teams utilizing specialized offensive, defensive and special teams units. The number of players allowed on an active roster varies by league; the NFL has a 53-man roster, while NCAA Division I allows teams to have 63 scholarship players in
27641-454: The field was shortened to 100 yards (91 m) long, two 10-yard-long (9.1 m) end zones were created, and teams were given four downs instead of three to advance the ball 10 yards (9.1 m). The roughing the passer penalty was implemented in 1914, and eligible players were first allowed to catch the ball anywhere on the field in 1918. On November 12, 1892, Pudge Heffelfinger was paid $ 500 (equivalent to $ 16,956 in 2023) to play
27852-475: The final drive of the game. Teams like these use this situation because of the advantages it gives them against defenses of the other team, so that the defense is unable to adjust to their gameplan. The quarterback position dates to the late 1800s, when American Ivy League schools playing a form of rugby union imported from the United Kingdom began to put their own spin on the game. Walter Camp ,
28063-656: The following year and won. Although Morton played most of the 1972 season due to an injury to Staubach, Staubach took back the starting job when he rallied the Cowboys in a come-from-behind win in the playoffs and Morton was subsequently traded; Staubach and Morton faced each other in Super Bowl XII . Another notable quarterback controversy involved the San Francisco 49ers , who had three capable starters: Joe Montana , Steve Young and Steve Bono . Montana suffered
28274-408: The football at the ground) to stop the official game clock. For example, if a team is down by a field goal with only seconds remaining, a quarterback may spike the ball to prevent the game clock from running out. This usually allows the field goal unit to come onto the field, or attempt a final " Hail Mary pass ". However, if a team is winning, a quarterback can keep the clock running by kneeling after
28485-531: The formation of the Intercollegiate Athletic Association of the United States, later renamed the National Collegiate Athletic Association (NCAA). The legal forward pass was introduced in 1906, although its effect was initially minimal due to the restrictions placed on its use. The idea of a 40-yard-wider field was opposed by Harvard due to the size of the new Harvard Stadium . Other rule changes introduced that year included
28696-419: The game clock based on the direction of the appropriate official . A separate play clock is used to show the amount of time within which the offense must initiate a play. The play clock is set to 25 seconds after certain administrative stoppages in play and to 40 seconds when play is proceeding without such stoppages. If the offense fails to start a play before the play clock reads "00", a delay of game foul
28907-409: The game had a strict sense of amateurism at the time, and direct payment to players was frowned upon, if not prohibited outright. Over time, professional play became increasingly common, and with it came rising salaries and unpredictable player movement, as well as the illegal payment of college players who were still in school. The National Football League (NFL), a group of professional teams that
29118-528: The gaps between offensive linemen. One player, usually the quarterback, would call signals indicating which player was to run the ball and which gap he would run toward. Playcalling (or any other kind of coaching from the sidelines) was not permitted during this period, leaving the quarterback to devise the offensive strategy (often, the quarterback doubled as head coach during this era). Substitutions were limited and quarterbacks often played on both offense and defense. Between 1933 and 1945, numerous changes for
29329-436: The ground before the ball is snapped. These are known as a " three-point stance " and "four-point stance" respectively, and this helps distinguish a defensive lineman from a linebacker, who begins in a two-point stance (i.e. without a hand touching the ground). Linebackers play behind the defensive line and perform various duties depending on the situation, including rushing the passer, covering receivers, and defending against
29540-443: The ground or a tee; a holder may be used in either case. On a safety kick, the kicking team kicks the ball from their own 20-yard line. They can punt, drop kick or place kick the ball, but a tee may not be used in professional play. Any member of the receiving team may catch or advance the ball. The ball may be recovered by the kicking team once it has gone at least ten yards and has touched the ground or has been touched by any member of
29751-480: The ground to the quarterback between his legs. The following year, a rule change officially made snapping the ball using the hands between the legs legal. Several years later, Amos Alonzo Stagg at the University of Chicago invented the lift-up snap: the center passed the ball off the ground and between his legs to a standing quarterback. A similar set of changes were later adopted in Canadian football as part of
29962-434: The guards. The principal receivers are the wide receivers (WR) and the tight ends (TE). Wide receivers line up on or near the line of scrimmage, split outside the line. The main goal of the wide receiver is to catch passes thrown by the quarterback, but they may also function as decoys or as blockers during running plays. Tight ends line up outside the tackles and function both as receivers and as blockers. The role of
30173-450: The importance of a mobile quarterback has been redefined. While arm power, accuracy, and pocket presence—the ability to successfully operate from within the "pocket" formed by his blockers—are still the most important quarterback virtues, the ability to elude or run past defenders creates an additional threat that allows greater flexibility in a team's passing and running game. Dual-threat quarterbacks have historically been more prolific at
30384-402: The last line of defense (furthest from the line of scrimmage) and usually help the corners with deep-pass coverage. The strong safety (SS) is usually the larger and stronger of the two, providing extra protection against run plays by standing closer to the line of scrimmage, usually on the strong (tight end) side of the field. The free safety (FS) is often the smaller and faster of the two, and
30595-443: The last team to field a black starting QB during an NFL season when Geno Smith filled in for Eli Manning in 2017. During the 2013 NFL season, 67 percent of NFL players were African American yet only 17 percent of quarterbacks were; 82 percent of quarterbacks were white, with just one percent of quarterbacks from other races. Since the inception of the game, only three quarterbacks with known black ancestry have led their team to
30806-540: The league to adopt variations on the T-formation, including the Philadelphia Eagles , Cleveland Rams and Detroit Lions . Baugh and the Redskins converted to the T-formation and continued to succeed. Thanks in part to the emergence of the T-formation and changes in the rulebooks to liberalize the passing game, passing from the quarterback position became more common in the 1940s and as teams switched to
31017-419: The limited number of active roster spots, professional full-time KOSs are rare. The punter usually lines up 15 yards behind the line of scrimmage. However, this distance has to be shortened when it would result in being on or behind the end line. After receiving the snap, the punter drops the football and kicks, or "punts", it from the air in order to relinquish possession to the defensive team and to send
31228-511: The line of scrimmage before the snap to confuse defenses. These changes were picked up by Chicago Bears coach George Halas , a close friend of Shaughnessy, and they quickly caught on in the professional ranks. Utilizing the T-formation and led by quarterback Sid Luckman , the Bears reached the NFL championship game in 1940 and beat the Redskins by a score of 73–0. The blowout led other teams across
31439-460: The line of scrimmage before they could attempt a pass, and incomplete passes in the end zone resulted in a change of possession and a touchback . Additionally, the rules required the ball to be snapped from the location on the field where it was ruled dead; if a play ended with a player going out of bounds, the center had to snap the ball from the sideline, an awkward place to start a play. Despite these constraints, player-coach Curly Lambeau of
31650-405: The line of scrimmage was soon rescinded, but it was later reimposed in six-man football . The exchange between the person snapping the ball, typically the center , and the quarterback was initially an awkward one because it involved a kick. At first, centers gave the ball a small boot, and then picked it up and handed it to the quarterback. By 1889, Yale center Bert Hanson was bouncing the ball on
31861-399: The line of scrimmage. Additionally, there are two receivers, one on each end of the line of scrimmage, who line up outside of the interior linemen. There are four main positions in this set of players: The quarterback is the player who receives the ball from the center to start the play. Considered the most influential position on the offensive side because his team's progress down the field
32072-464: The line of scrimmage. There are three positions usually considered part of the defensive line: Sometimes called a "defensive guard", defensive tackles play at the center of the defensive line. Their function is to rush the passer and stop running plays directed at the middle of the line of scrimmage. Most defensive sets have one or two defensive tackles. If one employs a second defensive tackle, sometimes referred to as an "under tackle", they are usually
32283-481: The linebackers or outside near the sidelines and are primarily used to defend against pass plays. They also act as the last line of defense on running plays and need to be able to make open field tackles, especially when the ball carrier has gotten past the other defenders. A normal defensive lineup includes two cornerbacks and two safeties, though specialty defensive backs (nickelbacks and dime backs) can be brought in in place of linebackers and defensive linemen when there
32494-411: The majority of the highest-paid players in the NFL are quarterbacks, and teams often use their top draft picks to select a quarterback. Bleacher Report describes the signing of a starting quarterback as a catch-22 , where " NFL teams cannot maintain success without excellent quarterback play. But excellent quarterback play is usually so expensive that it prevents NFL teams from maintaining success";
32705-538: The mandated "four backs and seven on the line" rule is followed. For many years, the standard set consisted of the quarterback, two running backs (a tailback/halfback and a fullback), two wide receivers (a flanker and a split end) and a tight end. Modern teams show a wide variety of formations, from a " full house " formation with three running backs, two tight ends, and no wide receivers, to "spread" formations featuring four or five wide receivers and either one or no running backs. Source: The defensive team, simply known as
32916-406: The middle, and rushing the quarterback on blitz plays . Outside linebackers are given different names depending on their role and the philosophy of the team. Some teams keep their outside linebackers on the same side of the field at all times while others define them as playing on either the "strongside" (SLB) or the "weakside" (WLB). The strongside, or "Sam", linebacker lines up on the same side as
33127-506: The most popular sport in the United States by the mid-1960s. The rival AFL arose in 1960 and challenged the NFL's dominance. The AFL began in relative obscurity but eventually thrived, with an initial television contract with the ABC television network. The AFL's existence forced the conservative NFL to expand to Dallas and Minnesota in an attempt to destroy the new league. Meanwhile, the AFL introduced many new features to professional football in
33338-400: The offense (the team with possession of the ball, which is trying to score), the defense (the team trying to prevent the other team from scoring, and to take the ball from them), and "special teams" (who play in all kicking situations). Within these three separate "platoons", various positions exist depending on the jobs that the players are doing. Source: In American football, the offense is
33549-429: The offense advances ten or more yards in the four downs, they are awarded a new set of four downs. If they fail to advance ten yards, possession of the football is turned over to the defense. In most situations, if the offense reaches their fourth down they will punt the ball to the other team, which forces them to begin their drive from farther down the field; if they are in field goal range , they might attempt to score
33760-413: The offense will run. Some teams use an offensive coordinator , an assistant coach whose duties include offensive game-planning and often play-calling. In the NFL, coaches are allowed to communicate with quarterbacks and call plays using audio equipment built into the player's helmet. Quarterbacks are allowed to hear, but not talk to, their coaches until there are fifteen seconds left on the play clock. Once
33971-410: The offense's advance and to take control of the ball for themselves. The offense must advance the ball at least ten yards in four downs or plays; if they fail, they turn over the football to the defense, but if they succeed, they are given a new set of four downs to continue the drive . Points are scored primarily by advancing the ball into the opposing team's end zone for a touchdown or kicking
34182-428: The offensive tight end and often is responsible for covering the tight end or running back on pass plays. The weakside, or "Will", linebacker lines up on the side of the offensive line without a tight end and is often used to rush, or blitz , the quarterback or to cover a running back on pass plays. Some are occasionally referred to as edge rushers . Defensive backs , also known as the "secondary", play either behind
34393-400: The offensive line to gain a small amount of yardage, but there is still an emphasis on being mobile enough to escape a heavy pass rush . Historically, high-profile dual-threat quarterbacks in the NFL were uncommon—among the notable exceptions were Steve Young and John Elway , who led their teams to one and five Super Bowl appearances respectively; and Michael Vick , whose rushing ability was
34604-399: The offensive line, though some teams may employ an unbalanced line where the center is offset to one side. Like all offensive linemen, the center has the responsibility to block defensive players. The center often also has the responsibility to call out blocking assignments and make last second adjustments depending on the defensive alignment. Two guards line up directly on opposite sides of
34815-429: The offensive line. Players can line up temporarily in a position whose eligibility is different from what their number permits as long as they report the change immediately to the referee, who then informs the defensive team of the change. Neither team's players, except the center (C), are allowed to line up in or cross the neutral zone until the ball is snapped. Interior offensive linemen are not allowed to move until
35026-445: The plane of the two end lines. The crossbar of these posts is 10 feet (3.0 m) above the ground, with vertical uprights at the end of the crossbar 18 feet 6 inches (5.64 m) apart for professional and collegiate play, and 23 feet 4 inches (7.11 m) apart for high school play. The uprights extend vertically 35 feet (11 m) on professional fields, a minimum of 10 yards (9.1 m) on college fields, and
35237-451: The point(s)-after-touchdown (PAT) or conversion, which is a single scoring opportunity. This is generally attempted from the two- or three-yard line, depending on the level of play. If the PAT is scored by a place kick or drop kick through the goal posts, it is worth one point, typically called the extra point. If the PAT is scored by what would normally be a touchdown, it is worth two points; this
35448-422: The punter. In football, the winner is the team that has scored more points at the end of the game. There are multiple ways to score in a football game. The touchdown (TD), worth six points, is the most valuable scoring play in American football. A touchdown is scored when a live ball is advanced into, caught, or recovered in the opposing team's end zone. The scoring team then attempts a try, more commonly known as
35659-418: The quarter-back and shall not rush forward with the ball under penalty of foul. In the primary formation of Camp's time, there were four "back" positions, with the tailback playing furthest back, followed by the fullback, the halfback, and the quarterback closest to the line. As the quarterback was not allowed to run past the line of scrimmage, and the forward pass had not yet been invented, their primary role
35870-434: The quarterback and execute a rushing play . Anywhere from zero to three running backs may be utilized on a play (a formation with no running backs is often called an "empty backfield"). Depending on where they line up and what role they have, running backs come in several varieties. The "tailback", also known as the " halfback ", is often a team's primary ball carrier on rushing plays. They may also catch passes, often acting as
36081-415: The quarterback as a passing threat, boosted by rules changes in 1978 and 1979 that made it a penalty for defensive backs to interfere with receivers downfield and allowed offensive linemen to pass-block using their arms and open hands; the rules had limited them to blocking with their hands held to their chests. Average passing yards per game rose from 283.3 in 1977 to 408.7 in 1979. The NFL continues to be
36292-407: The quarterback has the "option" to identify which matchup is most favorable to the offense as the play unfolds and exploit that defensive weakness. In the college game, many schools employ several plays that are designed for the quarterback to run with the ball. This is much less common in professional football, except for a quarterback sneak , a play that involves the quarterback diving forward behind
36503-413: The quarterback has. Everything else is secondary". "An argument can be made that quarterback is the most influential position in team sports, considering he touches the ball on virtually every offensive play of a far shorter season than baseball, basketball or hockey—a season in which every game is vitally important". Most consistently successful NFL teams (for instance, multiple Super Bowl appearances within
36714-499: The quarterback lines up out wide, the quarterback can be used as a receiving target or a blocker. A more rare use for a quarterback is to punt the ball themself, a play known as a quick kick . Denver Broncos quarterback John Elway was known to perform quick kicks occasionally, typically when the Broncos were facing a third-and-long situation. Philadelphia Eagles quarterback Randall Cunningham , an All-America punter in college,
36925-484: The quarterback position were applied. The rule requiring a quarterback/tailback to be five yards behind the line of scrimmage to pass was abolished, and hash marks were added to the field that established a limited zone between which the ball was placed before snaps, making offensive formations more flexible. Additionally, incomplete passes in the end zone were no longer counted as turnovers and touchbacks. The single-wing continued to be in wide use throughout this, and
37136-426: The quarterback receives the call, he may relay it to other players via signals or in a huddle . Dallas Cowboys head coach Tom Landry was an early advocate of taking play calling out of the quarterback's hands. Although this remained a common practice in the NFL through the 1970s, fewer QBs were doing it by the 1980s and even Hall of Famers like Joe Montana did not call their own plays. Buffalo Bills QB Jim Kelly
37347-401: The receiving team. The three types of scrimmage kicks are place kicks, drop kicks, and punts. Only place kicks and drop kicks can score points. The place kick is the standard method used to score points, because the pointy shape of the football makes it difficult to reliably drop kick. Once the ball has been kicked from a scrimmage kick, it can be advanced by the kicking team only if it
37558-439: The reduction of playing time from 70 to 60 minutes and an increase of the distance required for a first down from 5 to 10 yards (4.6 to 9.1 m). To reduce infighting and dirty play between teams, the neutral zone was created along the width of the football before the snap. Scoring was also adjusted: points awarded for field goals were reduced to three in 1909 and points for touchdowns were raised to six in 1912. Also in 1912,
37769-404: The returner. They usually line up near the sidelines where there will be fewer blockers which allows them to get down the field quickly. Wide receivers and cornerbacks often fill the role as gunner. Jammers try to slow down gunners during punts or kickoffs so the returners have more time to move down the field. American football American football , referred to simply as football in
37980-542: The rulebook for the 1876 college football season , when the sport first shifted from soccer-style rules to rugby-style rules. Although it could easily have been called "rugby" at this point, Harvard, one of the primary proponents of the rugby-style game, compromised and did not request the name of the sport be changed to "rugby". The terms " gridiron " or "American football" are favored in English-speaking countries where other types of football are popular, such as
38191-436: The run. Sometimes called the "inside linebacker" (especially in a 3–4 defense ), and known colloquially as the "Mike" linebacker, the middle linebacker is often known as the "quarterback of the defense", as they are frequently the primary defensive play callers and must react to a wide variety of situations. Middle linebackers must be capable of stopping running backs who make it past the defensive line, covering pass plays over
38402-457: The second one, the Harvard players preferred the Canadian style of having only 11 men on the field, running the ball without having to be chased by an opponent, the forward pass, tackling, and using an oblong instead of a round ball. An 1875 Harvard–Yale game played under rugby-style rules was observed by two Princeton athletes who were impressed by it. They introduced the sport to Princeton,
38613-503: The secondary, consists of cornerbacks (CB) and safeties (S). Safeties are themselves divided into free safeties (FS) and strong safeties (SS). Cornerbacks line up outside the defensive formation, typically opposite a receiver to be able to cover them. Safeties line up between the cornerbacks but farther back in the secondary. Safeties tend to be viewed as "the last line of defense" and are responsible for stopping deep passing plays as well as breakout running plays. The special teams unit
38824-421: The single-wing, an unbalanced power formation where four linemen lined up to one side of the center and two lined up to the other. The tailback was the focus of the offense, and was often a triple-threat man who would either pass, run or kick the ball. Offensive play calling continued to focus on rushing up through the 1920s, when professional leagues began to challenge the popularity of college football. In
39035-454: The single-wing, the quarterback was positioned behind the line of scrimmage and was flanked by a tailback , fullback and wingback . He served largely as a blocking back; the tailback typically took the snap, either running forward with the ball or making a lateral pass to one of the other players in the backfield. The quarterback's job was usually to make blocks upfield to help the tailback or fullback gain yards. Passing plays were rare in
39246-433: The size of tight ends or linebackers , as they not only have to be big enough to block for the punter or kicker, but also athletic enough to run down the field on coverage to try to tackle the return man. In the past, long snappers were often backup players, but nowadays this position is usually played by dedicated long snappers. Returners are responsible for catching kicked balls (either on kickoffs or punts) and running
39457-425: The snap instead on fake punts and will either pass or run with the football in those situations. Upbacks are usually played by backup running backs or linebackers. The upback, along with the punter, are usually the last lines of defense to prevent an opponent from returning a punt for a touchdown. A gunner is a player on kickoffs and punts who specializes in running down the field very quickly in an attempt to tackle
39668-411: The snap of the ball. The main backfield positions are the quarterback (QB), halfback/tailback (HB/TB), and fullback (FB). The quarterback is the leader of the offense. Either the quarterback or a coach calls the plays. Quarterbacks typically inform the rest of the offense of the play in the huddle before the team lines up. The quarterback lines up behind the center to take the snap and then hands
39879-410: The snap. This is normally done when the opposing team has no timeouts and there is little time left in the game, as it allows a team to burn up the remaining time on the clock without risking a turnover or injury. A dual-threat quarterback possesses the skills and physique to run with the ball if necessary. With the rise of several blitz-heavy defensive schemes and increasingly faster defensive players,
40090-531: The sport in the U.S., with another 81,000 college athletes in the NCAA and the NAIA . The National Football League (NFL) has the highest average attendance of any professional sports league in the world . Its championship game, the Super Bowl , ranks among the most-watched club sporting events globally. In 2022, the league had an annual revenue of around $ 18.6 billion, making it the most valuable sports league in
40301-619: The sport strictly mandate the organization of the offense: there must be at least seven players on the line of scrimmage and no more than four players (known collectively as "backs") behind it. The only players eligible to handle the ball during a normal play are the backs and the two players on the end of the line (the "ends"). These players make up the " skill positions " and are also referred to as " eligible receivers " or "eligible ball carriers". The remaining players (known as "interior linemen") are "ineligible" to catch forward passes. Within these strictures, however, creative coaches have developed
40512-447: The start of the play, the quarterback may be lined up in one of three positions. If he is positioned directly behind and in contact with the center and receives the ball via the direct hand-to-hand pass, he is said to be "under center". Alternatively, if he is lined up some distance behind the center, he is said to be either in " shotgun formation " or in " pistol formation " ('shotgun' is generally further back than 'pistol'). Upon receiving
40723-407: The starting quarterback has usually been one of the team captains as the leader of the team's offense. In the NFL, while the starting quarterback has no other responsibility or authority, they may, depending on the league or individual team, have various informal duties, such as participation in pre-game ceremonies, the coin toss or other events outside the game. For instance, the starting quarterback
40934-466: The team has been eliminated from the postseason , or the playoff seeding cannot be affected), in order to ensure the starting quarterback does not needlessly risk an injury. Backup quarterbacks typically have the career of a journeyman quarterback and have short stints with multiple teams, a notable exception being Frank Reich , who backed up Jim Kelly for nine years with the Buffalo Bills in
41145-435: The team that has possession of the ball and is advancing toward the opponent's end zone to score points. The eleven players of the offense can be separated into two main groups: the five offensive linemen , whose primary job is to block opponents and protect their quarterback , and the other six backs and receivers, whose primary job is to move the ball down the field by either running with it or passing it. The rules of
41356-468: The team to give him the starting job; Rodgers would himself encounter a similar situation in 2020 when the Packers drafted quarterback Jordan Love . Similarly, Patrick Mahomes was selected by the Kansas City Chiefs to eventually supplant Alex Smith , with the latter willingly serving as a mentor. In addition to their main role, quarterbacks are occasionally used in other roles. Most teams utilize
41567-401: The team will run. However, when there is not much time left, or when an offense simply wants to increase the tempo of their plays, teams will forgo the huddle and the quarterback may call plays while the other offensive players get into position or at the line of scrimmage. After the team is lined up, the center will pass the ball back to the quarterback (a process called the snap ). Usually on
41778-435: The team's punter for several seasons—a double duty he performed to All-American standard at Arizona State University . White also had two touchdown receptions as a Dallas Cowboy, both from the halfback option . If quarterbacks are uncomfortable with the formation the defense is using, they may call an audible change to their play. For example, if a quarterback receives the call to execute a running play, but they notice that
41989-499: The time was played at the collegiate level . The upstart NFL received a boost to its legitimacy in 1925, however, when an NFL team, the Pottsville Maroons , defeated a team of Notre Dame all-stars in an exhibition game . A greater emphasis on the passing game helped professional football to distinguish itself further from the college game during the late 1930s. Football, in general, became increasingly popular following
42200-441: The two-quarterback system; West Georgia, for example, uses the system due to the skillsets of its quarterbacks. As recently as 2020, Oregon, who had two quarterbacks capable of starting (Boston College transfer Anthony Brown and sophomore Tyler Shough ), utilized a similar tactic in the 2020 Pac-12 Football Championship Game , giving Shough the start but inserting the dual-threat Brown on short-yardage plays, red zone situations and
42411-414: The type of specialist and the play that was called, the responsibilities of these positions vary. Also called a " placekicker ", kickers handle kickoffs , extra points , and field goals . All three situations require the kicker to kick the ball off the ground, either from the hands of a holder or off of a tee . Some teams employ two kickers: one kicks extra points and field goals, and the other, known as
42622-411: The width of the field, are marked every 5 yards (4.6 m). A one-yard-wide line is placed at each end of the field; this line is marked at the center of the two-yard line in professional play and at the three-yard line in college play. Numerals that display the distance from the closest goal line in yards are placed on both sides of the field every ten yards. Goalposts are located at the center of
42833-408: The winning team decides to defer, the losing team chooses the option the winning team did not select—to receive, kick, or select a goal to defend to begin the second half. Most teams choose to receive or defer, because choosing to kick the ball to start the game allows the other team to choose which goal to defend. Teams switch goals following the first and third quarters. If a down is in progress when
43044-402: The world. Other professional and amateur leagues exist worldwide, but the sport does not have the international popularity of other American sports like baseball or basketball ; the sport maintains a growing following in the rest of North America, Europe, Brazil, and Japan. In the United States, American football is referred to as "football". The term "football" was officially established in
43255-430: Was also known to punt the ball occasionally, and was assigned as the team's default punter for certain situations, such as when the team was backed up inside their own five-yard line. As Roger Staubach 's backup, Dallas Cowboys quarterback Danny White was also the team's punter , opening strategic possibilities for coach Tom Landry. Ascending to the starting role upon Staubach's retirement, White held his position as
43466-520: Was instituted. Despite these new rules, football remained a violent sport. Dangerous mass-formations like the flying wedge resulted in serious injuries and deaths. A 1905 peak of 19 fatalities nationwide resulted in a threat by President Theodore Roosevelt to abolish the game unless major changes were made. In response, 62 colleges and universities met in New York City to discuss rule changes on December 28, 1905. These proceedings resulted in
43677-541: Was later converted to wide receiver. James Harris started several games for the Buffalo Bills after the AFL-NFL merger, and later started games for the Los Angeles Rams . Other early NFL black starting quarterbacks include Joe Gilliam of the Pittsburgh Steelers , who was the first black quarterback to start a season for any NFL team; though he was benched after the first six games. The New York Giants became
43888-496: Was one of the last to regularly call plays. Peyton Manning , formerly of the Indianapolis Colts and Denver Broncos, was the best modern example of a quarterback who called his own plays, primary using an uptempo, no-huddle-based attack. Manning had almost complete control over the offense. Former Baltimore Ravens quarterback Joe Flacco retained a high degree of control over the offense as well, particularly when running
44099-535: Was originally established in 1920 as the American Professional Football Association, aimed to solve these problems. This new league's stated goals included an end to bidding wars over players, prevention of the use of college players, and abolition of the practice of paying players to leave another team. By 1922, the NFL had established itself as America's premier professional football league. The dominant form of football at
44310-595: Was succeeded by Bono as the Chiefs' starting quarterback. Teams will often bring in a capable backup quarterback via the draft or a trade, as competition or potential replacement which would certainly threaten the starting quarterback's place in the team (see Two-quarterback system below). For instance, Drew Brees began his career with the San Diego Chargers but the team also drafted Philip Rivers ; despite Brees initially retaining his starting job and being
44521-402: Was to receive the snap from the center, and immediately hand or toss the ball backwards to the fullback or halfback to run. By the early 1900s, their role had been further reduced, as teams began to employ longer, direct snaps to one of the other backs (who by rule were allowed to run) and the quarterback became the primary "blocking back", leading the way through the defense but rarely carrying
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