USC--Do you have to see it?

[MichaelVA2000]

Originally Posted by IamMatt

ASA 14-U, visiting team batter returns to dugout after called strike 3, next batter comes up to plate. PU comes over to visitors dugout, calls the just-retired batter out and ejects her after being told by home team that she had flipped him off after the third strike call.

Just curious if an umpire is required to see USC in order to eject a player, or can he rely on the word of the opposing team/fans?

Had it been a NCAA or Fed game I would like to have seen the written report on that ejection.