championship; title (of champion)
baseball player; ballplayer
team (of players, athletes); squad; (sports) delegation
player's career; one's career in sport; one's career as an athlete
star player; star athlete
Olympic village; athlete's village
athlete's oath of fair play
professional player (sports); pro
great player; star player
(the) most valuable player; MVP
(professional) keirin cyclist
substitute player; reserve
veteran player; experienced player; veteran (at a job)
active player; player on the active list
regular player; first-team player; first-string player
substitute player; substitution
spare player; substitute; sub; benchwarmer
strong or skillful person; good player