Coco Gauff upset defending WTA Finals champion Iga Swiatek for only the second time in 13 matches to reach the semi-finals in Riyadh, despite 11 double faults.
Coco Gauff upset defending WTA Finals champion Iga Swiatek for only the second time in 13 matches to reach the semi-finals in Riyadh, despite 11 double faults.
