Zheng stuns Swiatek after winning another set from 5-0 down
Zheng Qinwen fought back from 5-0 down in the opening set to beat former champion Iga Swiatek 7-5 6-3 and reach the US Open quarter-finals, extending a remarkable comeback story for a player who had dropped outside the world's top 100 after elbow surgery in July 2025. The Olympic champion, who came through three rounds…