Zheng, 20, has battled through four matches at the U.S. Open, improving with each win. On Wednesday, she will play Aryna Sabalenka, who is on the cusp of being the world No. 1.
Zheng, 20, has battled through four matches at the U.S. Open, improving with each win. On Wednesday, she will play Aryna Sabalenka, who is on the cusp of being the world No. 1.