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
History of African Americans in the Canadian Football League in the CFL years before the same was accomplished in the NFL. More recently, the CFL has provided opportunities for black, as well as other, Americans unable to break into the NFL. There were a small number black players in the league now known as the National Football League from its inception in 1920. Following the 1933 season, however, there were no black players in the NFL or any other major-league level professional football association, including the precursors to the Canadian Football League, until 1946. During this period, black players were confined to minor leagues and independent barnstorming teams. At