With a straight-sets win against World No.1 Aryna Sabalenka, Coco Gauff will take on red-hot Zheng Qinwen (7 p.m. start in Riyadh) for the WTA Finals championship.

Defiant Coco Gauff fought back to beat China's Zheng Qinwen 3-6 6-4 7-6(2) in a three-hour thriller on Saturday and become the youngest player to win the WTA Finals in 20 years and the first American champion since Serena Williams a decade ago.

On Saturday, the 20-year-old survived a three-hour thriller in the Riyadh final and edged out Zheng Qinwen 3-6 6-4 7-6 (2). A couple of times during the match, the American had her back turned against the wall but managed to come back and ultimately win.