Watch: Bat boy interferes with Flores on catch attempt

The circus that has followed the New York Mets all season continued Thursday.

In the top of the fourth inning, with the bases loaded and one out, Mets third baseman Wilmer Flores made a play on a foul ball, but was interfered with by a bat boy.

The incident appeared to confuse the umpires, who initially ruled the play as player interference but later rescinded the call. That led to an irritated Mets manager Terry Collins being ejected for arguing the decision.

Below is the official MLB rule for intentional and unintentional interference:

The question of intentional or unintentional interference shall be decided on the basis of the person's action. For example: a bat boy, ball attendant, policeman, etc., who tries to avoid being touched by a thrown or batted ball but still is touched by the ball would be involved in unintentional interference. If, however, he kicks the ball or picks it up or pushes it, that is considered intentional interference, regardless of what his thought may have been.

To make matters worse, the bat boy - who was wearing Milwaukee Brewers colors - is in fact property of the Mets. Bat boys for road teams are required to wear the opposition's jerseys.

The gaffe comes a day after Mr. Met, the club's mascot, was recorded flipping off a fan following the team's 7-1 loss to the Brewers.