Canadian football years, and are not officially defined in the rules. However, among offensive players, the rules recognize three different types of players: Specific offensive positions include: The rules do not constrain how the defence may arrange itself (other than the requirement that they must remain one yard behind the line of scrimmage until the play starts). "Special teams" generally refers to kicking plays, which typically involve a change in possession. Canadian football Canadian football () is a sport played in Canada in which two teams of 12 players each compete for territorial control of a field of play long and wide
Football player Football player A football player is a sportsperson who plays one of the different types of football. The main types of football are association football, American football, Canadian football, Australian rules football, Gaelic football, rugby league and rugby union. It has been estimated that there are 250 million association football players in the world, and many play the other forms of football. Jean-Pierre Papin has described football as a "universal language". Footballers across the world and at almost any level may regularly attract large crowds of spectators, and players are the focal points of widespread social phenomena such as association