Coco Gauff claimed a rare victory over Iga Swiatek to punch her ticket to the semi-finals of the WTA Finals in Riyadh on Tuesday and end the Pole's bid to claim the year-end number one ranking.

Understandably, Rybakina was rusty in her opening two matches at the WTA Finals after not playing for a considerable period. That partially explains her losses to Jasmine Paolini and Qinwen Zheng, ...