Daniil Medvedev had an angry run-in with a courtside TV camera as he missed out on a place in the final of the Western & Southern Open.
The top seed was a set ahead against fellow Russian Andrey Rublev when he collided with the camera during a rally.
Clearly annoyed at its positioning on the court, Medvedev shoved the lens with his foot before complaining to the umpire that he “could have broken my hand”.
The right-hander, ranked second in the world, needed a medical time-out for treatment on his left hand.
Whether it inhibited him was unclear, but fourth seed Rublev took advantage to gain a first career win over his compatriot, prevailing 2-6, 6-3, 6-3.
In the second men’s semi-final, German No3 seed Alexander Zverev faces the No2 seed, Stefanos Tsitsipas of Greece.
Karolina Pliskova faces Jil Teichmann of Austria in the other semi-final.
Additional reporting by PA