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.

World No. 2 Coco Gauff is out at Wimbledon after losing to Dayana Yastremska in a stunning round-one upset. Yastremska defeated Gauff in straight sets, 7–6 (7–3), 6–1. It is Gauff's second first-round exit at Wimbledon in three years.