Zheng Qinwen defeats Donna Vekic in US Open's latest finish for a women's match

Zheng Qinwen defeated Donna Vekic 7-6(2) 4-6 6-2 at the U.S. Open to reach the quarter-finals in an intense match finishing at 2.15 a.m. Zheng, who is aiming to win both the Olympic gold and the U.S. Open in the same year, will face Aryna Sabalenka next.