Grigor Dimitrov angrily confronted a fan after it appeared the tennis star was tripped up at the Shanghai Masters.
Footage captured by a supporter at the Shanghai Masters shows Dimitrov walking through a crowd of people, before appearing to stumble.
The ATP ace quickly returns to his feet but turns around and gives a stern look in the direction of who he believes caused him to trip.
He raised his finger and pointed at the alleged culprit, before turning back and walking off in the opposite direction.
Dimitrov had been competing at the Shanghai Masters, with the Bulgarian seeing off Alexei Popyrin in straight sets.
The 33-year-old did need a tiebreaker in both sets, but progressed to the next round without much of a hitch.
Speaking after his win over Alexei Popyrin but before the incident with the trip, Dimitrov said: “I saw the stats a little bit, and that said it all. I think I was just very happy that I was able to play a good match, that’s all.
“I didn’t really want to expect too much of my game, but all I knew was that if I did the right things, if I was serving well, returning well, and using every opportunity I had, it was enough, it was plenty.
“I think after that first set tiebreak I started to read the game a little bit more. I think his serve kind of changed its direction a little bit, I was able to read his serve very well. Ultimately, I found a good, yeah, a good distance between me and the ball and I was executing very well.”
Commenting on his next opponent, teenage sensation Jakub Mensík, he added: “Oh, another battle. I mean, now I think the years are becoming (laughing) longer, like a bigger stretch, but that’s okay.
“Yeah, another match, honestly, just another match. I played him once this year, Madrid, if I remember correct. Yeah, difficult match, I think, on both ends. He grabbed that one. So, yeah, very dangerous opponent.
“But, again, I like how my progress is going so far, so I’m looking forward to it.”
Dimitrov faces Mensík in the Shanghai Masters fourth round on Wednesday morning.
Elsewhere in the competition, Carlos Alcaraz and Gael Monfils will go head-to-head, while Roman Safiullin and Novak Djokovic will face off for a spot in the quarter-final.
Meanwhile, world No.1 Jannik Sinner was drawn against Ben Shelton in the fourth round of the Shanghai Masters.
