usually 25-26 but there are more players on a roster during the end of the season and during the playoffs.
Twelve active players are allowed to be on an NBA roster during each individual game.
Each team in the NFL has 45 players on its active roster.
An NFL team can have 53 players on an active roaster but only 46 can dress on game day.
53 is the active roster.
In the National Hockey League, 20 players are allowed to dress for a game and 23 are allowed on the 'active roster'.
There are 30 teams in the major leagues with 25 players per team for a total of 750 players in the league. Technically, the Toronto Blue Jays are in Canada so the total number of players playing for American teams is 725. The above answer is technically correct but there are two types of rosters on a team. The active roster and the expanded roster. The roster of 25 players eligible to play and who can dress for each game is the active roster. But there can be as many as 40 players who are signed to a team on the expanded roster.
Currently 40 on the active roster.
25 active players on a MLB roster.
Every team has a 25 men active roster. There's also an expanded 40 man roster which contains players that are eligible to be moved onto the active roster if one of the players on the active roster goes to the disabled list, is released, etc..