Coco Gauff Upsets Aryna Sabalenka, Sets Up Showdown With Zheng Qinwen For WTA Finals Title

Coco Gauff defeated top-ranked Aryna Sabalenka 7-6 (4), 6-3 on Friday, setting up a showdown with Olympic champion Zheng Qinwen in final of WTA Finals.

Gauff generated six break points to Sabalenka's four and built on early momentum in opening set's tie-break that she carried through to second set.

She's youngest player at 20 to make final at WTA Finals since Caroline Wozniacki in 2010. Zheng earlier defeated Wimbledon champion Barbora Krejcikova 6-3, 7-5 to book her place in Saturday's final.

Zheng continued her remarkable season by reaching decider in her first appearance. Chinese player has won 31 of her 36 matches since Wimbledon, more than anyone else on tour.

Zheng struck nine aces as she defeated a tired-looking Krejcikova in an hour and 40 minutes.