In the National Hockey League, 20 players are allowed to dress for a game and 23 are allowed on the 'active roster'.
A team in MLB is allowed to dress 25 players for a game. There are 30 teams in MLB. That makes 750 players.
An NFL team is allowed to carry 53 players on its roster of which 45 may dress for a game. There are 11 players in a football team
23 are allowed
Twentytwo (22) players are allowed to dress for a game. Normally there are twelve (12) forwards, eight (8) defensemen and two (2) netminders on the official roster.
there are 10 to11 players allowed
in NCAA there can be up to 30 players on a team
6 players for each team
As many can dress as you like, but only 16 can play.