Instruct: Given a question, retrieve relevant documents that answer the question.
Query: How many players does each team have on the field in an American football game?
In American football since the 1950s, most upper level teams use a three-platoon system, each with its own starting lineup. The starting lineups for offense and defense, each with eleven players, typically get the most attention. The starting lineups are defined as the eleven players who take the first offensive or defensive play from scrimmage of a given game. (An offensive player does not have to be on the team that gets possession first to be considered a starter, nor does a defensive player have to be on the team that does not; the first play from scrimmage after the first change of possession counts as well.) The third platoon, special teams, in modern times is composed mostly of backup and reserve players from the offensive or defensive platoons, with the exception of the placekicker or punter; the players who, for instance, take part in the opening kickoff are typically not considered starters.
A rugby union game is divided into two halves of 40 minutes (or shorter for lower-grade games, and breaks given halfway through each half if playing conditions are considered to be extreme) separated by a half time period of up to 15 minutes in an international match. Most notably, a rugby union game will continue after the scheduled end of a half (half-time or full-time) until the ball becomes dead - any occurrence that would have play restart with a scrum or lineout, or when a team scores. This has led to some "nail-biting" finishes where teams losing by only a small margin work their way towards scoring, and games can go on several minutes over time. Something similar can occur at the end of either half in American football, though usually for only a few seconds of additional time, because a play that begins before the half expires continues until the ball is dead regardless of whether there is any time left on the clock. In both sports, the clock is also stopped during substitutions and for injuries, so the referee does not need to add stoppage time as is done in soccer/Association football. American football games are made up of four quarters of 15 minutes each (less at the high school and youth levels), but the clock stops and starts according to specific rules, so that a 15-minute quarter lasts much longer.
Gridiron football does not operate on a league system. Different professional leagues play by very different sets of rules in different seasons (the NFL plays 11-a-side on a 100-yard field in autumn and early winter, the CFL uses 12-a-side on a 110-yard field in summer and early fall, while arena football and the minor indoor leagues each play 8-a-side on a 50-yard field in the spring and early summer). There have been attempts at forming true minor leagues for the professional game (most recently with 2017's The Spring League); none so far have been able to balance the major leagues' requests with the ability to maintain financial solvency.
The Sports Broadcasting Act of 1961 and Public Law 89-800, which govern the antitrust exemptions given to the National Football League, prohibit the broadcasting of NFL games within 75 miles of any high school football game on Friday nights between September and early December. Because most populated areas of the United States have at least one high school football game within a 75-mile radius, and because broadcasting is an integral part of the NFL's business model (roughly half of the league's revenue comes from television contracts), this effectively prohibits the playing of NFL games in competition with high school football. (These rules do not apply during preseason, when Friday night games are common, nor does it apply at the end of the season, though the only time regular season games are played on Friday in the NFL is on Christmas.) Only recently have national sports television channels fully capitalized on this rule; since 2005, the ESPN family of networks (usually the sub-networks ESPN2, ESPNU and online broadcaster ESPN3, although the main channel also shows occasional games) has aired regular season matchups between nationally ranked teams under the "High School Showcase" banner. Fox Sports 1 also included high school football in its lineup when it launched in 2013.
A soccer-specific stadium typically has amenities, dimensions and scale suitable for soccer in North America, including a scoreboard, video screen, luxury suites and possibly a roof. The field dimensions are within the range found optimal by FIFA: long by wide. These soccer field dimensions are wider than the regulation American football field width of , or the width of a Canadian football field. The playing surface typically consists of grass as opposed to artificial turf, as the latter is generally disfavored for soccer matches since players are more susceptible to injuries. However, some soccer specific stadiums, such as Portland's Providence Park and Creighton University's Morrison Stadium, do have artificial turf.
Each AFC team plays the other teams in their respective division twice (home and away) during the regular season, in addition to 10 other games assigned to their schedule by the NFL. Two of these games are assigned on the basis of a particular team's final divisional standing from the previous season. The remaining 8 games are split between the roster of two other NFL divisions. This assignment shifts each year and will follow a standard cycle. Using the 2012 regular season schedule as an example, each team in the AFC West plays against every team in the AFC North and NFC South. In this way, non-divisional competition will be mostly among common opponents – the exception being the two games assigned based on the team's prior-season divisional standing.
The game itself features international level soccer matchups and customizable options that makes a game anywhere from a length of a childhood soccer match (3 minute halves) to the length of an actual FIFA soccer match (45 minute halves). As long as they can remember the lengthy passwords, players can also make their own soccer teams. The game announcer's uses brief words and phrases to describe the action (i.e., kick-off, yellow card, red card, penalty shot, head shot, header, rainbow kick).
Currently, the thirteen opponents each team faces over the 16-game regular season schedule are set using a pre-determined formula.
Each NFC team plays the other teams in their respective division twice (home and away) during the regular season, in addition to 10 other games assigned to their schedule by the NFL. Two of these games are assigned on the basis of a particular team's final divisional standing from the previous season. The remaining 8 games are split between the roster of two other NFL divisions. This assignment shifts each year and will follow a standard cycle. Using the 2012 regular season schedule as an example, each team in the NFC West plays against every team in the AFC East and NFC North. In this way, non-divisional competition will be mostly among common opponents – the exception being the two games assigned based on the team's prior-season divisional standing.
The American Football League stands as the only professional football league to successfully compete against the NFL. When the two leagues merged in 1970, all ten AFL franchises and their statistics became part of the new NFL. Every other professional league that had competed against the NFL before the AFL–NFL merger had folded completely: the three previous leagues named "American Football League" and the All-America Football Conference. From an earlier AFL (1936–1937), only the Cleveland Rams (now the Los Angeles Rams) joined the NFL and are currently operating, as are the Cleveland Browns and the San Francisco 49ers from the AAFC. A third AAFC team, the Baltimore Colts (not related to the 1953–1983 Baltimore Colts or to the current Indianapolis Colts franchise), played only one year in the NFL, disbanding at the end of the 1950 season. The league resulting from the merger was a 26-team juggernaut (since expanded to 32) with television rights covering all of the Big Three television networks and teams in close proximity to almost all of the top 40 metropolitan areas, a fact that has precluded any other competing league from gaining traction since the merger; failed attempts to mimic the AFL's success included the World Football League (1974–75), United States Football League (1983–85), XFL (2001) and United Football League (2009–2012).
The regular season is 21 weeks long, with games beginning in mid-June and finishing by early November. The CFL's nine current teams are divided into two divisions: the East Division with four teams and the West Division, with five teams. Each team plays two games against each of the other eight teams, plus two divisional games with opponents rotating each season. With 18 regular season games being played, each team gets three bye weeks.
Teams do not play a given conference opponent from outside their division more than once during the regular season. However, they may meet again for a second time in the playoffs. The NFL schedules divisions to play against each other on a rotating basis, so that every team from one division will play every team from another division, for a total of four games per team. Each team will also play one team from each of the remaining two divisions within the conference that finished in the same divisional standing position in the prior year—for a grand total of 20 conference games. Conference games are often important, as a team's record in common games, as well as its overall record against its conference, is sometimes used as a tiebreaker for playoff seeding at the end of the regular season. Also, many regular season opponents have met again in the playoffs, and the result of a regular season game can affect where the playoff game will be played. Conference rivals will play each other at least once every three years in the regular season, and as frequently as once every year depending on record, and can play each other in the preseason.
NBC broadcast the first televised National Football League (NFL) game when they carried the 22 October 1939 game between the Philadelphia Eagles and the Brooklyn Dodgers. The same year, the first nationwide radio broadcast of an NFL championship game was carried on the Mutual Broadcasting System. While the NFL had weak television deals that ranked behind college football and even the Canadian Football League in the 1950s, the broadcast rights of the NFL would go on to become an important property following the 1958 NFL Championship and the later establishment of the American Football League in 1960. "Monday Night Football", "NFL on Fox", and "NBC Sunday Night Football" have changed the landscape of American football broadcasts, including the scheduling of the Super Bowl, transforming it from an afternoon broadcast into a primetime spectacle. The price for the NFL's broadcast rights has increased steadily over the past several decades, in part because of bidding wars between the numerous networks and the fear of losing stature due to the loss of NFL programming; as of the most recent contract the league nets annual fees of over $6 billion, or half of the league's overall revenue, from television rights alone. Four of the five major sports television units in the United States, and the four companies that control all of the major broadcast networks, currently own some NFL rights.
As a team in the WSFL, Xplosion is considered a semi-professional Women's American football team. While most teams in the WSFL are 11 player, there is also a division consisting of 8 player teams. Three Rivers Xplosion participates in the later division, having 8 players on the field during their games. They play the full-contact, tackle version of American football with rules similar to those in the NFL. Xplosion practices and plays their games at local South Side schools and stadiums, with one their frequently utilized facilities being Quarry Field.
The 1926 American Football League season is the only season of the existence of the first American Football League. It started with nine teams, with the initial game of the season being played in front of 22,000 fans in Cleveland, Ohio, but by the end of the season (December 14, 1926), only four teams were still in existence: three teams owned or subsidized by league founder C. C. Pyle and star Red Grange (New York Yankees, Los Angeles Wildcats, and Chicago Bulls) and league champion Philadelphia Quakers. The initial lineup of teams included the traveling Wildcats and a charter member of the National Football League, the Rock Island Independents, which became a second traveling team after having poor attendance in its first three games.
Fantasy football (less commonly referred to as fantasy association football worldwide but known as fantasy soccer in the United States) is a game in which participants assemble an imaginary team of real life footballers and score points based on those players' actual statistical performance or their perceived contribution on the field of play. Usually players are selected from one specific division in a particular country, although there are many variations. The original game was created in England by Bernie Donnelly on Saturday 14 August 1971 and is still going strong 45 years later. Fantasy football has evolved in recent years from a simple recreational activity into a significant business due to exposure via the internet.
Only one professional football league has a permanent presence in Canada: the Canadian Football League (CFL), an organization founded in 1958 to accommodate the ongoing trend of professionalism in the Canadian football ranks since the 1940s. The CFL, like most amateur Canadian football leagues, plays on a larger field using a rulebook with several significant rule differences compared to the game as it is played in the United States. The league is composed of two divisions and nine teams in most of the largest Canadian markets, with at least one team in each province between British Columbia (BC Lions) and Quebec (Montreal Alouettes) inclusive. The only presence in Atlantic Canada is a semi-regular series of games in Moncton (Touchdown Atlantic) and a smattering of earlier preseason contests. The CFL operates a two-week preseason beginning in June, an 18-game season from July to October, and a six-team playoff tournament, culminating in the Grey Cup on the fourth weekend of November.
There have been proposals to expand the regular season schedule to 17 or 18 games per team. Current Commissioner Roger Goodell has said he favors expanding it to 18 games. However, a longer regular season proposal was defeated in the 2011 labor negotiations between the owners and the players association. One of the proposals for the 17th and 18th games is to have every team play at least one game abroad every year. Another idea being put forth by Houston Texans owner Bob McNair is to move the traditional regional rivalries that are currently played in the preseason (such as the Governor's Cups) into a permanent annual part of each NFL team's schedule. The NFL Players' Association opposes extending the season, largely because of injury concerns, and extending the season would require that such an extension be included in the next collective bargaining agreement. The collective bargaining agreement signed in 2011 maintained the sixteen game regular season schedule.
When the AFL and the NFL officially merged in 1970, the combined league divided its teams into the American Football Conference (AFC) and the National Football Conference (NFC). It was then decided (officially announced on January 26, 1970) that CBS would televise all NFC teams (including playoff games) while NBC would carry games from all AFC teams. For interconference games, CBS would broadcast them if the visiting team was from the NFC and NBC would carry them when the visitors were from the AFC. This was in line with the NFL television blackout rules of the time, meaning that every televised game of a local NFL team would be on the same channel (at the time, home games were banned from local television regardless of sell-out status, while road games are required to be aired in the teams' primary media markets, and select neighboring markets as well, even if it is not the most popular team in the market). The two networks also divided up broadcast rights to the Super Bowl on a yearly rotation.
The pitch is rectangular in shape. The longer sides are called touchlines. The other opposing sides are called the goal lines. The two goal lines must be between wide, and be the same length. The two touchlines be between long, and be the same length. All lines on the ground must be equally wide, not to exceed . The corners of the pitch are marked by corner flags.
A game lasts thirty-six minutes, and is split up into three twelve-minute periods. Unlike association football, in professional matches the referee is not the sole arbiter of the end of a period. A separate timekeeping official controls the official game clock, which is stopped for stoppages in play, and typically counts down to zero, as in North American sports such as basketball and ice hockey. Draws are not permitted, with the game going into three minutes of extra time, followed by a penalty shootout if the score is still on level terms after normal time. Unlike football, penalty kicks are decided by sudden death rules.
Super Bowl XXXIX was an American football game played between the American Football Conference (AFC) champion New England Patriots and the National Football Conference (NFC) champion Philadelphia Eagles to decide the National Football League (NFL) champion for the 2004 season. The Patriots defeated the Eagles by the score of 24–21. The game was played on February 6, 2005, at Alltel Stadium in Jacksonville, Florida, the first time the Super Bowl was played in that city.
Traditionally, the onside kick had its own formation, in which the other ten players of the kicking team would line up on one side (left or right) of the kicker, in an effort to get as many people as possible into one area of the field. This is still popular in high school football; however, the NCAA (and later the NFL) now require that at least four players line up on each side of the kicker. To combat this, some teams (including the Buffalo Bills, who pioneered this strategy) developed a "cluster formation" in which all of the players line up behind and immediately next to the kicker in what is effectively a moving huddle. The NFL eventually banned this, too, with a 2009 rule change that states that "the kicking team cannot have more than five players bunched together"; the rule change has been considered a gratuitous targeting of Bills special teams coach Bobby April, as the ostensible reason for the ban (injury risk) had negligible evidence to support it. Effective with the 2018 season, the NFL requires that the kicking team line up with five players on each side of the ball.
An onside kick is usually a desperation technique used when the kicking team trails in the score with little time left in the game, in order to regain the ball and score again. The trade-off is that, in the usual case that the receiving team does get possession of the ball, it will have better field position and will need to advance the ball fewer yards in order to score. However, in the desperation situation, initial field position becomes less relevant, as the receiving team may focus on running the clock out and ending the game. If the kicking team succeeds in retaining possession, then the clock does not automatically stop as it would if the ball were transferred between teams (though it may stop for other reasons).
Although the number of players participating in the game is somewhat unimportant, the number of players from each team on the field must be equal and is normally about thirty from each team. In many games the players are split into three groups on the field. One group or the "pole men" guard their own goal to prevent the other team from scoring. The second group is placed in the middle of the field and is responsible for moving the ball down the field towards the goal to score points, and the third group or "returners" are gathered around the opponent's pole to help their team score points on the opposing team's pole. Due to the nature of the game and the number of players trying to retrieve one ball, injuries are unavoidable.
In most club and schoolhouse American Football, the majority of players play both offense and defense, only being substituted for injury. Substitutes in American football can return to the game at any stoppage in play. In rugby union, any player substituted off for any reason, except for a 'blood' injury, is prohibited from returning to the field of play (with the possible exception of front-row forwards). Rugby teams may make up to seven substitutions. Each team must field 15 players at the start of each match. Players who are bleeding may receive medical treatment off pitch and are replaced until they have stopped bleeding. If the bleeding has not stopped after 15 minutes of "real time", the player will be permanently substituted. This can be down to officials' discretion, depending at which level the sport is played, where only minor medical assistance is needed to make the player fit to return to the field of play. Ejected players in American football can be replaced with a substitute.
In the 1995 season, in every team's home games, at least seven "local" players had to be playing or on the bench (three locals in away games). In the years before 2006, each team had to field at least one player of non-American extraction, called a "national" player, on every down of every other series. In 2006 the rule was changed to "every" series. In addition to European players a number of Mexican and Japanese players played as national players. Up until the 2004 season, kicked conversion attempts and short field goals were attempted by national players. Since there are few European players who have had the chance to compete at a level comparable to U.S. college football and the NFL, many, if not most, of the European players ended up as kickers.