Vasek Pospisil Apologizes Unsportsmanlike Conduct.

Canadian tennis pro Vasek Pospisil apologized on Twitter Wednesday after he attacked ATP Chairman Andrea Gaudenzi in a profanity-laced tirade during his first-round exit from the Miami Open.

An hour and half yesterday, the chair of the ATP screaming at me in a player meeting, for trying to unite the players,” Pospisil said, per Tennis.com.

Pospisil was referring to recent efforts to set up a new group to represent men’s professional players.

“I want to sincerely apologize for my behavior on the court in Miami earlier today.