Association football, more commonly known as football or soccer, is a team sport played between two teams of 11 Football player who almost exclusively use their feet to propel a ball around a rectangular field called a Football pitch.
The objective of the game is to score more goals than the opposing team by moving the ball beyond the goal line into a rectangular-framed goal defended by the opponent. Traditionally, the game has been played over two 45-minute halves, for a total match time of 90 minutes. With an estimated 250 million players active in over 200 countries and territories, it is the world's most popular sport.
Association football is played in accordance with the Laws of the Game, a set of rules that has been in effect since 1863 and maintained by the IFAB since 1886. The game is played with a football that is in circumference. The two teams compete to score goals by getting the ball into the other team's goal (between the posts, under the bar, and fully across the goal line). When the ball is in play, the players mainly use their feet, but may also use any other part of their body, except for their hands or arms, to control, strike, or pass the ball; the head, chest, and thighs are commonly used. Only the goalkeepers may use their hands and arms, but only within their own penalty area. The team that has scored more goals at the end of the game is the winner. Depending on the format of the competition, an equal number of goals scored may result in a draw being declared with 1 point awarded to each team, or the game may go into extra time or a penalty shoot-out.
Internationally, association football is governed by FIFA. Under FIFA, there are six continental confederations: AFC, CAF, CONCACAF, CONMEBOL, OFC, and UEFA. National associations (e.g. the FA in England, U.S. Soccer in the United States, etc.) are responsible for managing the game in their own countries both professionally and at an amateur level, and coordinating competitions in accordance with the Laws of the Game. The most prestigious senior international competition is the FIFA World Cup. The men's World Cup is the most-viewed sporting event in the world, surpassing the Olympic Games. The most prestigious competition in European club football is the UEFA Champions League, which attracts an extensive television audience worldwide. The final of the men's Champions League is the most-watched annual sporting event in the world.
The term soccer comes from Oxford "-er" slang, which was prevalent at the University of Oxford in England from about 1875, and is thought to have been borrowed from the slang of Rugby School. Initially spelt assoccer (a shortening of "association"), it was later reduced to the modern spelling. Early alternative spellings included socca and socker. This form of slang also gave rise to rugger for rugby football, fiver and tenner for five pound and ten pound notes, and the now-archaic footer that was also a name for association football.
Within the English-speaking world, association football is now usually called simply "football" in Great Britain and most of Ulster in the north of Ireland, whereas people usually call it "soccer" in regions and countries where other codes of football are prevalent, such as Australia, Canada, South Africa, most of Ireland (excluding Ulster), and the United States. A notable exception is New Zealand, where in the first two decades of the 21st century, under the influence of international television, "football" has been gaining prevalence, despite the dominance of other codes of football, namely rugby union and rugby league.
and were Ancient Greece ball games. An image of an player depicted in low relief on a stele of in the National Archaeological Museum of Athens appears on the UEFA European Championship trophy. Athenaeus, writing in 228 CE, mentions the Roman Empire ball game harpastum. and harpastum were played involving hands and violence. They all appear to have resembled rugby football, wrestling, and volleyball more than what is recognisable as modern football.Nigel Wilson, Encyclopedia of Ancient Greece, Routledge, 2005, p. 310Nigel M. Kennell, The Gymnasium of Virtue: Education and Culture in Ancient Sparta (Studies in the History of Greece and Rome), The University of North Carolina Press, 1995, on Google Books Steve Craig, Sports and Games of the Ancients: (Sports and Games Through History), Greenwood, 2002, on Google Books Don Nardo, Greek and Roman Sport, Greenhaven Press, 1999, p. 83Sally E. D. Wilkins, Sports and games of medieval cultures, Greenwood, 2002, on Google books
These ongoing efforts contributed to the formation of the Football Association (the FA) in 1863, which first met on the morning of 26 October 1863 at the Freemasons' Tavern in Great Queen Street, London. The only school to be represented on this occasion was Charterhouse. The Freemasons' Tavern was the setting for five more meetings of the FA between October and December 1863; the English FA eventually issued the first comprehensive set of rules named Laws of the Game, forming modern football. The laws included bans on running with the ball in hand and hacking (kicking an opponent in the shins), tripping and holding. Eleven clubs, under the charge of FA secretary Ebenezer Cobb Morley, ratified the original thirteen laws of the game. The sticking point was hacking, which a twelfth club at the meeting, Blackheath FC, had wanted to keep, resulting in their withdrawal from the FA. Other English rugby clubs followed this lead and did not join the FA, and instead in 1871, along with Blackheath, formed the Rugby Football Union. The 1863 FA rules included handling of the ball by "marks" and the lack of a crossbar, making the game remarkably similar to Victorian rules football, which was being developed around the same time in Australia. The Sheffield FA played by its own rules until the 1870s, with the FA absorbing some of its rules until there was little difference between the games.
The world's oldest football competition is the FA Cup, which was founded by the footballer and cricketer Charles W. Alcock, and has been contested by English teams since 1872. The first official international football match also took place in 1872, between Scotland and England in Glasgow, again at the instigation of Alcock. England is also home to the world's first football league, which was founded in Birmingham in 1888 by Aston Villa director William McGregor. The original format contained 12 clubs from the Midlands and Northern England.
The Laws of the Game are determined by the International Football Association Board (IFAB). The board was formed in 1886 after a meeting in Manchester of the Football Association, the Scottish Football Association, the Football Association of Wales, and the Irish Football Association. FIFA, the international football body, was formed in Paris in 1904 and declared that they would adhere to the Laws of the Game of the Football Association. The growing popularity of the international game led to the admittance of FIFA representatives to the IFAB in 1913. The board consists of four representatives from FIFA and one representative from each of the four British associations.
Football is played at a professional level all over the world. Millions of people regularly go to football stadiums to follow their favourite teams, while billions more watch the game on television or on the internet. A very large number of people also play football at an amateur level. According to a survey conducted by FIFA published in 2001, over 240 million people from more than 200 countries regularly play football. Football has the highest global television audience in sport.
In many parts of the world, football evokes great passions and plays an important role in the life of individual fans, local communities, and even nations. Ryszard Kapuściński says that Europeans who are polite, modest, or humble fall easily into rage when playing or watching football games. The Ivory Coast national football team helped secure a truce to the nation's civil war in 2006 and it helped further reduce tensions between government and rebel forces in 2007 by playing a match in the rebel capital of Bouaké, an occasion that brought both armies together peacefully for the first time. By contrast, football is widely considered to have been the final proximate cause for the Football War in June 1969 between El Salvador and Honduras. The sport also exacerbated tensions at the beginning of the Croatian War of Independence of the 1990s, when a match between Dinamo Zagreb and Red Star Belgrade degenerated into rioting in May 1990.
The best-documented early European team was founded by activist Nettie Honeyball in England in 1894: the British Ladies' Football Club. Honeyball considered women's involvement in football as part of the emancipation movement. She and others like her paved the way for women's football. However, the women's game was frowned upon by the British football associations and continued without their support. It has been suggested that this was motivated by a perceived threat to the "masculinity" of the game.
Women's football became popular on a large scale at the time of the First World War, when female employment in heavy industry spurred the growth of the game, much as it had done for men decades earlier. The most successful team of the era was Dick, Kerr Ladies F.C. of Preston, England. They played in one of the first women's international matches against a French XI team in 1920, and also made up most of the England team against a Scottish Ladies XI in the same year, winning 22–0. In the early 20th century, women's football in the United Kingdom was mostly associated with charity matches.
Despite being more popular than some men's football events, with one match seeing a 53,000 strong crowd in 1920, women's football in England suffered a blow in 1921 when the Football Association outlawed the playing of the game on association members' pitches, stating that "the game of football is quite unsuitable for females and should not be encouraged". Players and football writers have argued that this ban was, in fact, due to envy of the large crowds that women's matches attracted, and because the FA had no control over the money made from the women's game. The FA ban led to the formation of the short-lived English Ladies Football Association and play moved to rugby football grounds. Women's football also faced bans in several other countries, notably in Brazil from 1941 to 1979, in France from 1941 to 1970, and in West Germany from 1955 to 1970.
Women's football still faces many struggles, but its worldwide growth has seen major competitions being launched at both the national and international levels, mirroring the men's competitions. The FIFA Women's World Cup was inaugurated in 1991: the first tournament was held in China, featuring 12 teams from the six confederations. The World Cup has been held every four years since; by 2019, it had expanded to 24 national teams, and 1.12 billion viewers watched the competition. Four years later, FIFA targeted the 32-team 2023 Women's World Cup at an audience of 2 billion, while more than 1.5 million tickets were sold, setting a Women's World Cup record. Women's football has been an Olympic event since 1996.
North America is the dominant region in women's football, with the United States winning the most FIFA Women's World Cups and Olympic tournaments. Europe and Asia come second and third in terms of international success, and the women's game has been improving in South America.
The primary law is that players other than goalkeepers may not deliberately handle the ball with their hands or arms during play, though they must use both their hands during a throw-in restart. Although players usually use their feet to move the ball around, they may use any part of their body (notably, "heading" with the forehead) other than their hands or arms. Within normal play, all players are free to play the ball in any direction and move throughout the pitch, though players may not pass to teammates who are in an offside position.
During gameplay, players attempt to create goal-scoring opportunities through individual control of the ball, such as by dribbling, passing the ball to a teammate, and by taking shots at the goal, which is guarded by the opposing goalkeeper. Opposing players may try to regain control of the ball by intercepting a pass or through tackling the opponent in possession of the ball; however, physical contact between opponents is restricted. Football is generally a free-flowing game, with play stopping only when the ball has left the field of play or when play is stopped by the referee for an infringement of the rules. After a stoppage, play recommences with a specified restart.
At a professional level, most matches produce only a few goals. For example, the 2022–23 season of the English Premier League produced an average of 2.85 goals per match. The Laws of the Game do not specify any player positions other than goalkeeper, but a number of specialised roles have evolved. Broadly, these include three main categories: strikers, or forwards, whose main task is to score goals; defenders, who specialise in preventing their opponents from scoring; and , who dispossess the opposition and keep possession of the ball to pass it to the forwards on their team. Players in these positions are referred to as outfield players, to distinguish them from the goalkeeper.
These positions are further subdivided according to the area of the field in which the player spends the most time. For example, there are central defenders and left and right midfielders. The ten outfield players may be arranged in any combination. The number of players in each position determines the style of the team's play; more forwards and fewer defenders creates a more aggressive and offensive-minded game, while the reverse creates a slower, more defensive style of play. While players typically spend most of the game in a specific position, there are few restrictions on player movement, and players can switch positions at any time. The layout of a team's players is known as a formation. Defining the team's formation and tactics is usually the prerogative of the team's manager.
The basic equipment or kit players are required to wear includes a shirt, shorts, socks, footwear and adequate . Wearing an jockstrap with protective cup is recommended for male players by medical experts and professionals. Headgear is not a required piece of equipment, but players may choose to wear it to protect themselves from head injury. Players are forbidden to wear or use anything that is dangerous to themselves or another player, such as jewellery or watches. The goalkeeper must wear clothing that is easily distinguishable from that worn by the other players and the match officials.
A number of players may be replaced by substitutes during the course of the game. The maximum number of substitutions permitted in most competitive international and domestic league games is five in 90 minutes, with each team being allowed one more if the game should go into extra-time; the permitted number may vary in other competitions or in friendly matches. Common reasons for a substitution include injury, tiredness, ineffectiveness, a tactical switch, or timewasting at the end of a finely poised game. In standard adult matches, a player who has been substituted may not take further part in a match. IFAB recommends "that a match should not continue if there are fewer than seven players in either team". Any decision regarding points awarded for abandoned games is left to the individual football associations.
A game is officiated by a referee, who has "full authority to enforce the Laws of the Game in connection with the match to which he has been appointed" (Law 5), and whose decisions are final. The referee is assisted by two assistant referees. In many high-level games there is also a fourth official who assists the referee and may replace another official should the need arise.
Goal line technology is used to measure if the whole ball has crossed the goal-line thereby determining whether a goal has been scored or not; this was brought in to prevent controversy. Video assistant referees (VAR) have also been increasingly introduced in high-level matches to assist officials through video replays to correct clear and obvious mistakes. There are four types of calls that can be reviewed: mistaken identity in awarding a red or yellow card, goals and whether there was a violation during the build-up, direct red card decisions, and penalty decisions.
The length of the pitch, or field, for international adult matches is in the range of and the width is in the range of . Fields for non-international matches may be in length and in width, provided the pitch does not become square. In 2008, the IFAB initially approved a fixed size of long and wide as a standard pitch dimension for international matches; however, this decision was later put on hold and was never actually implemented.
The longer boundary lines are touchlines, while the shorter boundaries (on which the goals are placed) are goal lines. A rectangular goal is positioned on each goal line, midway between the two touchlines. The inner edges of the vertical goal posts must be apart, and the lower edge of the horizontal crossbar supported by the goal posts must be above the ground. Nets are usually placed behind the goal, but are not required by the Laws.
In front of the goal is the penalty area. This area is marked by the goal line, two lines starting on the goal line from the goalposts and extending into the pitch perpendicular to the goal line, and a line joining them. This area has a number of functions, the most prominent being to mark where the goalkeeper may handle the ball and where a penalty foul by a member of the defending team becomes punishable by a penalty kick. Other markings define the position of the ball or players at kick-offs, goal kicks, penalty kicks and corner kicks.
Due to the relatively high ambient temperatures in some regions of the planet, cooling breaks for the players were introduced. Breaks could take place at the referee's discretion after the 30th minute of each half if the Wet Bulb Globe Temperature exceeded ; the breaks would last 3 minutes, with this time made up by an extended period of stoppage time at the end of the half.
In competitions using , each team competes at home once, with an aggregate score from the two matches deciding which team progresses. Where aggregates are equal, the away goals rule may be used to determine the winners, in which case the winner is the team that scored the most goals in the leg they played away from home. If the result is still equal, extra time and potentially a penalty shoot-out are required.
The referee may punish a player's or substitute's misconduct by a caution (Penalty card) or dismissal (Penalty card). A second yellow card in the same game leads to a red card, which results in a dismissal. A player given a yellow card is said to have been "booked", the referee writing the player's name in their official notebook. If a player has been dismissed, no substitute can be brought on in their place and the player may not participate in further play. Misconduct may occur at any time, and while the offences that constitute misconduct are listed, the definitions are broad. In particular, the offence of "unsporting behaviour" may be used to deal with most events that violate the spirit of the game, even if they are not listed as specific offences. A referee can show a yellow or red card to a player, substitute, substituted player, and to non-players such as managers and support staff.
Rather than stopping play, the referee may allow play to continue if doing so will benefit the team against which an offence has been committed. This is known as "playing an advantage". The referee may "call back" play and penalise the original offence if the anticipated advantage does not ensue within "a few seconds". Even if an offence is not penalised due to advantage being played, the offender may still be sanctioned for misconduct at the next stoppage of play.
The referee's decision in all on-pitch matters is considered final. The score of a match cannot be altered after the game, even if later evidence shows that decisions (including whether a goal was awarded or not) were incorrect.
Sanctions for such infractions may be levied on individuals or on clubs as a whole. Penalties may include fines, point deductions (in league competitions) or even expulsion from competitions. For example, the English Football League deduct 12 points from any team that enters financial administration. Among other administrative sanctions are penalties against game forfeiture. Teams that forfeit a game or are forfeited against are awarded a technical loss or win.
National associations (or national federations) oversee football within individual countries. These are generally synonymous with sovereign states (for example, the Cameroonian Football Federation in Cameroon), but also include a smaller number of associations responsible for sub-national entities or autonomous regions (for example, the Scottish Football Association in Scotland). 211 national associations are affiliated both with FIFA and with their respective continental confederations. Other national associations may be members of continental confederations but otherwise not participate in FIFA competitions.
While FIFA is responsible for organising international competitions and enforcing most international regulations, the Laws of the Game are set by the IFAB, where each of the four UK associations holds one vote and FIFA collectively holds four votes.
The major international competition in football and the most prestigious is the World Cup, organised by FIFA. This competition has taken place every four years since 1930, with the exception of the 1942 and 1946 tournaments, which were cancelled because of World War II. As of 2022, over 200 national teams compete in qualifying tournaments within the scope of continental confederations for a place in the finals. The finals tournament involved 32 national teams (expanding to 48 teams for the 2026 tournament) competing over a four-week period. The World Cup is the world's most widely viewed and most followed sporting event, with the 2022 tournament estimated to be watched by 5 billion people, more than 60% of the global population. The 1958 World Cup saw the emergence of Pelé as a global sporting star, a period that coincided with "the explosive spread of television, which massively amplified his presence everywhere". The current champions are Argentina, who won their third title at the 2022 tournament in Qatar. The FIFA Women's World Cup has been held every four years since 1991. Under the tournament's current format that was expanded in 2023, national teams vie for 31 slots in a three-year qualification phase, while the host nation's team enters automatically as the 32nd slot. The current champions are Spain, after winning their first title in the 2023 tournament.
There has been a football tournament at every Summer Olympic Games since 1900, except at the 1932 games in Los Angeles when FIFA and the International Olympic Committee (IOC) had disagreed over the status of amateur players. Before the inception of the World Cup, the Olympics (especially during the 1920s) were the most prestigious international event. Originally, the tournament was for amateurs only. As professionalism spread around the world, the gap in quality between the World Cup and the Olympics widened. The countries that benefited most were the Soviet Bloc countries of Eastern Europe, where top athletes were state-sponsored while retaining their status as amateurs. Between 1948 and 1980, 23 out of 27 Olympic medals were won by Eastern Europe, with only Sweden (gold in 1948 and bronze in 1952), Denmark (bronze in 1948 and silver in 1960) and Japan (bronze in 1968) breaking their dominance. For the 1984 Los Angeles Games, the IOC allowed professional players to compete. Since 1992, male competitors must be under 23 years old, although since 1996, three players over the age of 23 have been allowed per squad. A women's tournament was added in 1996; in contrast to the men's event, full international sides without age restrictions play the women's Olympic tournament.
After the World Cup, the most important international football competitions are the continental championships, which are organised by each continental confederation and contested between national teams. These are the European Championship (UEFA), the Copa América (CONMEBOL), the Africa Cup of Nations (CAF), the Asian Cup (AFC), the Gold Cup (CONCACAF) and the Nations Cup (OFC). These competitions are not strictly limited to members of the continental confederations, with guest teams from other continents sometimes invited to compete. The FIFA Confederations Cup was contested by the winners of all six continental championships, the current FIFA World Cup champions, and the country which was hosting the next World Cup. This was generally regarded as a warm-up tournament for the upcoming FIFA World Cup and did not carry the same prestige as the World Cup itself. The tournament was discontinued following the 2017 edition, with its calendar slot replaced by an expanded FIFA Club World Cup. The Finalissima was revived in 2022, and is contested between the Copa América and European Championship winners. The UEFA Nations League and the CONCACAF Nations League were introduced in the late 2010s to replace international exhibition match during the two-year cycle between major tournaments.
The most prestigious competitions in club football are the respective continental championships, which are generally contested between national champions, for example, the UEFA Champions League in Europe and the Copa Libertadores in South America. The winners of each continental competition contest the FIFA Intercontinental Cup, held annually, and the FIFA Club World Cup, held once every four years.
The governing bodies in each country operate in a domestic season, normally comprising several divisions, in which the teams gain points throughout the season depending on results, usually three points for a win, one for a draw and zero for a defeat. Teams are put into tables, placed in order according to points accrued. In the Old World (Africa, Asia and Europe), it is common for each team to play every other team in its league at home and away in each season, in a round-robin tournament. At the end of a season, which typically runs from August to May, the top team is declared the champion. The top few teams may be promoted to a higher division, and one or more of the teams finishing at the bottom are relegated to a lower division.
Some exceptions to this system occur in the New World (Americas) and Australia:
The teams finishing at the top of a country's league may also be eligible to play in international club competitions in the following season. Most countries supplement the league system with one or more "cup" competitions organised on a knock-out basis. These include the domestic cup, which may be open to all eligible teams in a country's league system—both professional and amateur—and is organised by the national federation.
Some countries' top divisions feature highly-paid star players; in smaller countries, lower divisions, and many women's clubs, players may be part-timers with a second job, or amateurs. The top five European leagues – Premier League (England), Bundesliga (Germany), La Liga (Spain), Serie A (Italy), and Ligue 1 (France) – attract most of the world's best players and, during the 2006–07 season, each of these leagues had a total wage cost in excess of Euro600 million. These leagues also generated a combined €17.2 billion in revenue in the 2021–22 season from television contracts, matchday tickets, sponsorships, and other sources. In the 2022–23 season, clubs in Europe's "big five" leagues had an aggregate wage cost of €13 billion, with each league spending more than €1.8 billion in wages. In contrast, the combined revenue of these leagues was €19.6 billion.
Street football can be played with only minimal equipment – a basic game can be played on almost any open area of reasonable size with just a ball made from almost any material and items to mark the positions of the goalposts. Such informal games can have team sizes that vary from eleven-a-side, can use a limited or modified subset of the official rules, and can be self-officiated by the players.
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