Portal:American football

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American football, referred to as football in the United States and Canada and also known as gridiron, 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 passing 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. Points 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. The team with the most points at the end of a game wins.

American football evolved in the United States, originating from the sports of soccer and rugby. The first American football match 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, 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 their rules were developed independently from that of Camp's). Most of 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. The most popular forms of the game are professional and college football, with the other major levels being high school and youth football. , nearly 1.1 million high school athletes and 70,000 college athletes play the sport in the United States annually. The National Football League, the most popular American football league, 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 in the world. The league has an annual revenue of around US$10 billion. Other leagues exist worldwide, but the sport does not have the international popularity of other American sports like baseball or basketball.

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The Birmingham Americans were a professional American football team located in Birmingham, Alabama. They were members of the four-team Central Division of the World Football League (WFL).

The Americans, founded in late December 1973, played in the upstart league's inaugural season in 1974. The team was owned by William "Bill" Putnam, doing business as Alabama Football, Inc. The club played all of their home games at Legion Field. The most successful of the World Football League franchises, the Americans led the league in attendance and won all 13 of their home games. Winning their first ten games in a row, they developed a reputation for come-from-behind victories and winning by narrow margins. The Americans finished the 1974 regular season at 15–5 and won the 1974 World Bowl by one point over the Florida Blazers.

Financially unstable due to investor reluctance and lavish signing bonuses paid to lure National Football League (NFL) players to the new league, the team folded after only one season. Most of the team's assets were seized to pay back taxes; failed lawsuits to recover the signing bonus money kept the team in the headlines long after the WFL was itself defunct. The Americans were replaced as the Birmingham WFL franchise for the 1975 season by a new team called the Birmingham Vulcans.

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Cleveland Browns Stadium
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Cleveland Browns Stadium is a football stadium located in Cleveland, Ohio. Home of the Cleveland Browns National Football League franchise, it sits on 31 acres (13 ha) of land on the shores of Lake Erie and has a capacity of at least 73,200.

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Dwain Chambers
Dwain Chambers (born 1978) is a British track sprinter. He has won international medals at World and European level and is one of the fastest European sprinters in the history of athletics.

His primary event is the 100 metres, in which he has the second fastest time by a British sprinter. He is the European record holder for the 60 metres and 4×100 metres relay events with 6.42 seconds and 37.73 s respectively. Chambers ran a 100 m world junior record of 10.06 s in 1997 and became the youngest ever world medallist in the event at the 1999 World Championships, taking the bronze. On his Olympic debut at the 2000 Sydney Olympics he was the best European performer in fourth place.

Due to his doping ban, he was barred from the Olympics, Commonwealth Games, and much of the European racing circuit, from 2006 to 2012. The Court of Arbitration for Sport overturned his lifetime Olympic ban, deeming it non-compliant with the World Anti-Doping Code, and he competed in the 2012 London Olympics.

He tried other sports, including a spell with the Hamburg Sea Devils of the NFL Europa league and a rugby league trial with Castleford. He produced a ghost-written autobiography with writer Ken Scott, Race Against Me, in 2009. He is of Afro-Caribbean descent and has two sons with his partner Leonie Daley.

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I don't understand American football at all. It looks like all-in wrestling with crash helmets.
— Sting (musician)

English musician on the brutal and physical quality of American football, especially as against that of association football

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