The 20-year-old American came from 2-0 and 5-3 down in the final set and was two points from defeat at one stage.
won the WTA Finals for the first time by rallying to beat Olympic champion Zheng Qinwen 3-6, 6-4, 7-6 (2) in the final on Saturday.Coco Gauff
The 20-year-old American came from 2-0 and 5-3 down in the final set and was two points from defeat at one stage.
