BASEBALL-ROSTER

The roster is the list of players available to a team. In Major League Baseball, there are two different rosters: The active roster and the Major League roster.Baseball, game played with a bat, a ball, and gloves between two teams of nine players each on a field with four white bases laid out in a diamond (i.e., a square oriented so that its diagonal line is vertical). Teams alternate positions as batters (offense) and fielders (defense), exchanging.