Dayana Yastremska made headlines Tuesday by completing one of the biggest upsets at Wimbledon with her first-round victory in straight sets over No. 2 seed Coco Gauff. But the unseeded Ukrainian tennis player isn’t a complete unknown.

Dayana Yastremska pulled off one the biggest upsets in Wimbledon, defeating two-time major-winner Coco Gauff in straight-sets during the first round on Tuesday.

Coco Gauff's time at Wimbledon is over after just one round. Gauff, the No. 2 seed who is coming off a title at Roland-Garros, lost to Dayana Yastremska 7-6 (3), 6-1 in the first round on Tuesday. Gauff is now just the third player in women's singles history to lose in the first round at Wimbledon after winning the French Open.