Bulgarian tennis player Grigor Dimitrov has exited the Istanbul Open in one of the most bizarre ways possible.

Playing in the final against Argentine Diego Schwartzman, Dimitrov took out the first set 7-6 in the three-set match, and led 5-2 in the second before choking to Schwartzman, who forced a third set on Monday morning (NZT).

As Schwartzman flew out to a 5-0 lead in the final set, Dimitrov lost his temper as the strings on his rackets began to break, resulting in him smashing two rackets.

He proceeded to break a third racket after another string broke, incurring a championship-ending game penalty.

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Dimitrov calmly shook hands with the umpire, before posing for an awkward post-match photo with Schwartzman.

The Bulgarian later apologized for his actions.