Coco Gauff may be saving the best for last. In what is shaping up to be potentially her best week of the season, Coco Gauff beat the world No. 1 Aryna Sabalenka in two turbulent sets Friday to set up a championship battle against the Olympic gold medalist Zheng Qinwen this weekend at the WTA Tour Finals.

Coco Gauff defeated top-ranked Aryna Sabalenka on Friday to set up a showdown with Olympic champion Zheng Qinwen in the final of the WTA Finals. Gauff converted six break points to Sabalenka's four in the 7-6 (4),

RIYADH (Reuters) -American Coco Gauff defeated world number one Aryna Sabalenka 7-6(4) 6-3 in the semi-finals of the WTA Finals on Friday and will take on China's Zheng Qinwen in the showpiece match. Sabalenka will end the year at the top of the world ...