The number of players on a baseball team 25 on the team 9 on the field The American League has 10 starters. 9 on the field and 1 designated hitter. when anyone gets hurt in their place another player comes and plays. Each team carries 25 active players on its Major League roster. This doesn't count players on the Disabled List (DL) who may still reside on a teams active 40 members.