I'm reading Bleacher Report right now, and it says that umpires, by rule, have no right to eject fans who have not entered the playing field. If it's true that this guy was not in violation of the Code of Conduct, then I think he really has a case here. This is what I was wondering. Maybe nothing like an eye-popping lawsuit, but that fan probably can sue MLB in some manner. I doubt much will come of it, though, beyond maybe seeing the ticket dropped. EDIT: The best I could find for a Fan Code of Conduct was individual ballparks' codes of conduct. All of them that I could find (LAD, PHI, CHW, TBR, NYM, CLE, BAL) included some variation on the phrase: "foul, abusive or obscene language or gestures." So it would appear this fan definitely violated that clause, but I don't see whether or not the umpire is supposed to be able to eject a fan that hasn't entered the field of play. All the language in the codes of conduct refer to contacting stadium security and/or an usher. Rule 4.06(a)(1) of MLB's Official Rules states, "No manager, player, substitute, coach, trainer or batboy shall at any time, whether from the bench, the coach’s box or on the playing field, or elsewhere— (1) Incite, or try to incite, by word or sign a demonstration by spectators" Rule 9.01(d) states, "Each umpire has authority to disqualify any player, coach, manager or substitute for objecting to decisions or for unsportsmanlike conduct or language, and to eject such disqualified person from the playing field. If an umpire disqualifies a player while a play is in progress, the disqualification shall not take effect until no further action is possible in that play. Rule 9.01(e): "Each umpire has authority at his discretion to eject from the playing field (1) any person whose duties permit his presence on the field, such as ground crew members, ushers, photographers, newsmen, broadcasting crew members, etc., and (2) any spectator or other person not authorized to be on the playing field." So it sounds like Davidson would have been in the right to eject a player saying the things this fan was to Molina, but I don't think he had the right to eject a fan in this instance. I'd imagine MLB's rule 4.06(a)(1) would apply to umpires as well, but I could be wrong.