Coco Gauff earned her second victory over Iga Swiatek in 13 career matchups , winning 6-3, 6-4 at the WTA Finals on Tuesday to reach the semifinals of the season-ending tournament.

Aryna Sabalenka clinched the year-end No. 1 spot in the women's rankings for the first time when Iga Swiatek lost at the WTA Finals on Tuesday.

RIYADH, Nov. 5 (Xinhua) -- American tennis star Coco Gauff defeated defending champion Iga Swiatek in straight sets at the WTA Finals in Riyadh on Tuesday, achieving her second consecutive group-stage ...