WTA roundup: Top seed Qinwen Zheng reaches Tokyo quarters

(Photo credit: Mike Frey-Imagn Images)
No. 1 seed Qinwen Zheng of China swept the last nine games against Japan's Moyuka Uchijima on Thursday to move into the Toray Pan Pacific Open quarterfinals in Tokyo.

Trailing 5-4 in the first set, Zheng rolled to a 7-5, 6-0 victory in 77 minutes. The reigning Olympic gold medalist will next face No. 8 seed Leylah Fernandez of Canada.

Third-seeded Daria Kasatkina of Russia rallied