how many players on a football team
There are many variants of each that allow different numbers of players but use the same rulebase or hybrids that are mix-and-match combinations of rules from more than one code. American Football Teams may have up to 53 players on roster, of which 45 may play in each game. There can be 11 on the field at one time. There is no limit on substitutions. Association Football Teams may have up to 18 players, of which 11 can be on the field at one time.
Rugby Football - League There may be up to 17 players in a team, of which 13 may be on the field. There is no limit on substitutions. Rugby Football - Union There are 22 players on a team, of which 15 may be on the field at any time.
Under NCAA football rules in place for the 2012-13 biennium, a college football team is limited to no more than 105 players during the offseason. During the football season, no regulated limit exists.