OFFICIAL BASEBALL RULES

Rule 5.10(d) (3.03) A player once removed from a game shall not re-enterthat game. If a player who has been substituted for attempts tore-enter, or re-enters, the game in any capacity, the umpire-inchiefshall direct the player’s manager to remove such playerfrom the game immediately upon noticing the player’s presenceor upon being informed of the player’s improper presenceby another umpire or by either manager. If such direction toremove the substituted for player occurs before play commenceswith the substituted-for player improperly in the game,then the substitute player may enter the game. If such directionto remove the substituted-for player occurs after play has commencedwith the substituted-for player in the game, then thesubstitute player shall be deemed to have been removed fromthe game (in addition to the removal of the substituted-forplayer) and shall not enter the game. If a substitute enters thegame in place of a player-manager, the manager may thereaftergo to the coaching lines at his discretion. When two or moresubstitute players of the defensive team enter the game at thesame time, the manager shall, immediately before they taketheir positions as fielders, designate to the umpire-in-chief suchplayers’ positions in the team’s batting order and the umpirein-chiefshall so notify the official scorer. If this information isnot immediately given to the umpire-in-chief, he shall haveauthority to designate the substitutes’ places in the battingorder.Rule 5.10(d) Comment (Rule 3.03 Comment): A pitcher maychange to another position only once during the same inning;e.g. the pitcher will not be allowed to assume a position otherthan a pitcher more than once in the same inning.Any player other than a pitcher substituted for an injuredplayer shall be allowed five warm-up throws. (See Rule5.07(b) (Rule 8.03) for pitchers.)Any play that occurs while a player appears in a game afterhaving been substituted for shall count. If, in an umpire’sjudgment, the player re-entered the game knowing that he hadbeen removed, the umpire may eject the manager.(e) (3.04) A player whose name is on his team’s batting order maynot become a substitute runner for another member of his team.51