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
Steroid use in American football approximately 20 percent of the players on a football team to test on a specific day. Anabolic steroids and other performance-enhancing drugs are also used throughout high school football. Steroid use at this level of play doubled from 1991 to 2003, with results of a survey showing that about 6 percent of players out of the 15,000 surveyed had admitted to using some type of anabolic steroid or performance-enhancing drug at one point in their playing time. Other data shows that only 4 percent of high schools have some form of drug testing program in place for their football teams.