- Latvian comes back from set down to oust world No 1 3-6, 6-3 ,6-1
- Ostapenko next faces American sixth seed Coco Gauff
Defending champion and world No 1 Iga Swiatek exited the US Open in the fourth round with a 3-6, 6-3 ,6-1 defeat to Latvia’s Jelena Ostapenko at Arthur Ashe Stadium.
The Polish three-times grand slam winner had not dropped a set before Sunday’s match but was unable to hold off the 20th seed’s charge.