Umpire abuse

[3] In 1996, Major League Baseball (MLB) player Roberto Alomar spat in umpire John Hirschbeck's face during a dispute.

[4] During the 2008 Beijing Olympics, Angel Valodia Matos from Cuba pushed and then kicked a referee in the face during a Taekwondo match.

The umpire, Mathew Nicholls, reported Jamar after he expressed his annoyance that he wasn't awarded a free kick in a marking contest.

In baseball, it is against the rules for any coach, manager, or player to question the umpire's judgement on a call on the field, or on balls and strikes.

If a coach, manager, or player begins to walk toward the umpire with the intent to argue a call or balls and strikes, he will be warned to return to his bench or position.