Andy Murray was forced to deny atempting to cheat as his defeat to Felix Auger-Aliassime finished strangely in Rotterdam.
Murray was unable to prevent the impresisve Canadian from advancing to the third round, but there was controversy as they played out match point.
With Aliassume 5-4 and 40-15 up in the second set, Murray's hat fell off midway through the point.
The Canadian didn't notice and continued to play and hit what he thought was a winner, Murray, though, had stopped assuming there would be a let on the point.
However, the umpire had not seen the incident, so no let was called, which did not go down well with an already frustrated Murray.
He pleaded with the umpire to be allowed to replay the point, saying: "I'm not trying to cheat
"I hit the ball and my hat fell off immediately, then I stopped, ok."
Then addressing Auger-Aliassime, he added "Felix, I promise that's what happened, I'm sorry."
Auger-Aliassime agreed to replay the point, despite not being onbliged to, and won it to take the match 6-3, 6-4.
"From the start of the match I was ready and focused and I think that is why I was able to produce a high level from the first point," Auger-Aliassime said afterwards.
"He made me bring out my best tennis and I am really happy with the way I played and that I was able to stay ahead. To win in straight sets is a great relief."