Viktor Troicki, Wimbledon 2016
Serbia's Viktor Troicki was furious at Wimbledon 2016 when the umpire judged opponent Albert Ramos' serve to be in, giving the Spaniard match point at 40-30. But Troicki, absolutely convinced the ball was out, screamed "What!?" at the umpire, before launching into a rage, calling the umpire "an idiot, the worst in the world! The worst ever! You didn't see anything today! You made 30 mistakes!"