The rule that decides substitutes in baseball is permanent substitution. That means, players who have left the game can't substitute back again. Other than that, there is no limit to substitutions. The only limit maybe the number of players on the roster.
Seven.
Not counting the substitutes it is 11 players in each team.
five baseball players
18 players are in a baseball game, 9 on each team on the field.
According to the NCAA guidelines for 2013-14 there is no limit to the number of substitutes a team can have. The substitutes can take the place of any of the players in any situated area following the right method of substitution during the game.
Nine
9
13
The team is out when three players are out.
9 on each team
9 for both