Coco Gauff was visibly frustrated over a controversial line call Tuesday at the Paris Olympics , and went on to lose her third-round singles match to Croatias Donna Vekic, video of the incident showed .

Gauff was trailing 3-2 in the second set when Vekic hit a service return that was called out by the line judge. So the American eased up on her backhand response, prompting a miss, USA Today reported .

But chair umpire Jaume Campistol ruled the ball in and gave Vekic the break point and the game for a 4-2 lead. While arguing her case, Gauff began to cry.

Vekic won the last two games to take the match, 7-6 (7), 6-2.