The following is a list of former Major League Baseball (MLB) players who played in at least 10 MLB seasons and spent their entire MLB playing careers exclusively with one franchise. In most cases, this means the player only appeared with one team; there are also players whose team was relocated (e.g. the Athletics) or had a name change (e.g. the Angels) during their career. Some listed players subsequently went on to coach or manage with other teams, or may have had minor league or foreign league appearances with other franchises. Some listed players had their careers ended by accidents, such as Roberto Clemente, who died in a 1972 airplane crash, and Roy Campanella, who was paralyzed in a 1958 automobile accident.