American football positions American football positions In American football each team has 11 players on the field at one time. The specific role that a player takes on the field is called his position. Under the modern rules of American football, teams are allowed unlimited substitutions; that is, teams may change any number of players after any play. This has resulted in the development of three "platoons" of players: the offense (the team with 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 the special
United States national American football team United States national American football team The United States National American football team represents the United States in international men's American football competitions. It was controlled by USA Football, and was recognized by the International Federation of American Football (IFAF) until the 2015 split between IFAF Paris and IFAF New York. The United States is the most successful team at the IFAF World Championship, winning on all three of their entries in the tournament, most recently when hosting the event in 2015. The U.S. team suffered its first defeat at the 2017 World Games, being represented by college players. The