The National Football League (NFL) is a professional American football league that consists of 32 teams, divided equally between the American Football Conference (AFC) and the National Football Conference (NFC). The NFL is one of the major professional sports leagues in the United States and Canada and the highest professional level of American football in the world. Each NFL season begins annually with a three-week preseason in August, followed by the 18-week regular season which runs from early September to early January, with each team playing 17 games and having one bye week. Following the conclusion of the regular season, seven teams from each conference advance to the playoffs, a single-elimination tournament that culminates in the Super Bowl, which is contested in February and is played between the winners of the AFC and NFC championship games.
In professional sports, as opposed to amateur sports, participants receive payment for their performance. Professionalism in sport has come to the fore through a combination of developments. Mass media and increased leisure have brought larger audiences, so that sports organizations or teams can command large incomes. As a result, more sportspeople can afford to make sport their primary career, devoting the training time necessary to increase skills, physical condition, and experience to modern levels of achievement. This proficiency has also helped boost the popularity of sports. In most sports played professionally there are many more amateur than professional players, though amateurs and professionals do not usually compete.
The English football league system, also known as the football pyramid, is a series of interconnected leagues for men's association football clubs in England, with five teams from Wales, one from Guernsey, one from Jersey and one from the Isle of Man also competing. The system has a hierarchical format with promotion and relegation between leagues at different levels, allowing even the smallest club the theoretical possibility of ultimately rising to the very top of the system, the Premier League. Below that are levels 2–4 organised by the English Football League, then the National League System from levels 5–10 administered by the FA, and thereafter Regional feeder leagues run by relevant county FAs on an ad hoc basis. It also often happens that the Premier Division of a Regional Feeder League has its constitution given to it by the FA. They have to accept it or appeal but cannot reject it at an annual general meeting.
Arena football is a variety of eight-man indoor gridiron football. The game is played indoors on a smaller field than American or Canadian football, designed to fit in the same surface area as a standard North American ice hockey rink, resulting in a faster and higher-scoring game that can be played on the floors of indoor arenas. The sport was invented in 1981, and patented in 1987, by Jim Foster, a former executive of the National Football League and the United States Football League. The name is trademarked by Gridiron Enterprises and had a proprietary format until its patent expired in 2007.
Minor leagues are professional sports leagues which are not regarded as the premier leagues in those sports. Minor league teams tend to play in smaller, less elaborate venues, often competing in smaller cities/markets. This term is used in North America with regard to several organizations competing in various sports. They generally have lesser fan bases, much smaller revenues and salaries, and are used to develop players for bigger leagues.
Non-League football describes football leagues played outside the top leagues of a country. Usually, it describes leagues which are not fully professional. The term is primarily used for football in England, where it is specifically used to describe all football played at levels below those of the Premier League and the three divisions of the English Football League. Currently, a non-League team would be any club playing in the National League or below that level. Typically, non-League clubs are either semi-professional or amateur in status, although the majority of clubs in the National League division are fully professional, some of which are former EFL clubs who have suffered relegation.
The Bundesliga, sometimes referred to as the Fußball-Bundesliga or 1. Bundesliga, is a professional association football league in Germany. At the top of the German football league system, the Bundesliga is Germany's primary football competition. The Bundesliga comprises 18 teams and operates on a system of promotion and relegation with the 2. Bundesliga. Seasons run from August to May. Games are played on Fridays, Saturdays and Sundays. All of the Bundesliga clubs take part in the DFB-Pokal cup competition. The winner of the Bundesliga qualifies for the DFL-Supercup.
The English Football League Championship, known simply as the Championship in England and for sponsorship purposes as Sky Bet Championship, is the highest division of the English Football League (EFL) and second-highest overall in the English football league system, after the Premier League, and is currently contested by 24 clubs.
Ligue 1, officially known as Ligue 1 Uber Eats for sponsorship reasons, is a French professional league for men's association football clubs. Being the top of the French football league system, it is the country's primary football competition. Administered by the Ligue de Football Professionnel, Ligue 1 is contested by 18 clubs and operates on a system of promotion and relegation from and to Ligue 2.
Semi-professional sports are sports in which athletes are not participating on a full-time basis, but still receive some payment. Semi-professionals are not amateur because they receive regular payment from their team, but generally at a considerably lower rate than a full-time professional athlete. As a result, semi-professional players frequently have full-time employment elsewhere. A semi-pro player or team could also be one that represents a place of employment that only the employees are allowed to play on. In this case, it is considered semi-pro because their employer pays them, but for their regular job, not for playing on the company's team.
The Eredivisie is the highest level of professional football in the Netherlands. The league was founded in 1956, two years after the start of professional football in the Netherlands. As of the 2023–24 season, it is ranked the 6th-best league in Europe by UEFA.
The Bundesliga, also known as Admiral Bundesliga for sponsorship reasons, is the top level of the Austrian football league system. The competition decides the Austrian national football champions, as well the country's entrants for the various European cups run by UEFA.
The Russian Second League, formerly the Russian Professional Football League are both the third and fourth level of Russian professional football.
American football, 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 the offense's advance and to take control of the ball for themselves. The offense must advance 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. A game is won by the team with the higher number of points, which are scored primarily by advancing the ball into the opposing team's end zone for a touchdown or kicking the ball through the opponent's goalposts for a field goal.
In the United States and Canada, the term professional football includes the professional forms of American and Canadian gridiron football. In common usage, it refers to former and existing major football leagues in either country. Currently, there are multiple professional football leagues in North America: the two longest-running leagues are the National Football League (NFL) in the U.S, and the Canadian Football League (CFL) in Canada. American football leagues have existed in Europe since the late 1970s, with competitive leagues all over Europe hiring American Imports to strengthen rosters. The Austrian Football League and German Football League top division are known as the best leagues in Europe. The Japan X-League is also a strong league that has a long history since 1971. The NFL has existed continuously since being so named in 1922.
K League (Korean: K리그) is South Korea's professional football league. It includes the first division K League 1 and the second division K League 2.
The Scottish Premiership known as the cinch Premiership for sponsorship reasons, is the top division of the Scottish Professional Football League (SPFL), the league competition for men's professional football clubs in Scotland. The Scottish Premiership was established in July 2013, after the SPFL was formed by a merger of the Scottish Premier League and Scottish Football League. There are 12 teams in this division, with each team playing 38 matches per season. Sixteen clubs have played in the Scottish Premiership since its creation in the 2013–14 season. Celtic are the current league champions, having won the 2023–24 Scottish Premiership.
The Scottish Championship, known as the cinch Championship for sponsorship reasons, is the second tier of the Scottish Professional Football League, the league competition for men's professional football clubs in Scotland. The Scottish Championship was established in July 2013, after the Scottish Professional Football League was formed by a merger of the Scottish Premier League and Scottish Football League.
The Scottish League One, known as Cinch League One for sponsorship reasons, is the third tier of the Scottish Professional Football League, the league competition for men's professional football clubs in Scotland. The Scottish League One was established in July 2013, after the Scottish Professional Football League was formed by a merger of the Scottish Premier League and Scottish Football League.
The Scottish League Two, known as cinch League Two for sponsorship reasons, is the fourth tier of the Scottish Professional Football League, the league competition for men's professional football clubs in Scotland. The Scottish League Two was established in July 2013, after the Scottish Professional Football League was formed by a merger of the Scottish Premier League and Scottish Football League.