US Open: Zheng in 5 0 Comeback; Gauff, Rybakina, Zverev Also in Quarters The US Open has always been a stage for drama, and this year is no exception.
The upsets are piling up, leaving even the most seasoned observers scratching their heads.
One of the most surprising stories so far has been that of Zheng Qinwen, the Chinese qualifier who's mounting an extraordinary comeback against all odds.