US Open: Zheng stuns Swiatek after another 5-0 comeback

By Adegboyega AdeleyeChina’s Qinwen Zheng produced another remarkable fightback at the US Open, recovering from 5-0 down to stun former champion Iga Swiatek 7-5, 6-3 and reach the quarter-finals.Zheng, who had also overturned a 5-0 deficit against Madison Keys in the deciding set of her previous match, extended her winning run in New York to seven matches after coming through three qualifying rounds.The 23-year-old was again facing elimination after Swiatek raced into a 5-0 lead on Arthur