China Open: Zheng Qinwen defeats Andreeva to reach her first WTA 1000 semifinal

BEIJING, Oct. 4 (Xinhua) -- Olympic champion Zheng Qinwen of China claimed a 5-7, 6-0, 6-4 victory over Mirra Andreeva, advancing to her first WTA 1000 semifinal on Friday. The 17-year-old Andreeva started strong for a 4-0 lead. Zheng fought back wi