infielder -
(baseball) a person who plays a position in the infield
fielder a member of the cricket team that is fielding rather than batting
baseball game,
baseball a ball game played with a bat and ball between two teams of nine players; teams take turns at bat trying to score runs; "he played baseball in high school"; "there was a baseball game on every empty lot"; "there was a desire for National League ball in the area"; "play ball!"
softball game,
softball a game closely resembling baseball that is played on a smaller diamond and with a ball that is larger and softer
catcher,
backstop the position on a baseball team of the player who is stationed behind home plate and who catches the balls that the pitcher throws; "a catcher needs a lot of protective equipment"; "a catcher plays behind the plate"