Serbia’s Viktor Troicki completely lost it on the court at Wimbledon on Thursday. During his second round match again Spanish player Albert Ramos-Vinolas, Troicki didn’t like the call the chair umpire made that brought the game to match point.

Troicki grabbed the tennis ball and shoved it in the umpire’s face to show him there wasn’t any white on it, so it couldn’t have hit the line. He screams, “no way look at it! The ball, please look at it! White! White! Look at it!”

Troicki then smashes the ball as hard as he can and calls the umpire the “worst umpire ever in the world.”

Tell us how you really feel, man.

Troicki went on to lose the match.

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