TC's live coverage of the Nitto ATP Finals begins on Sunday, November 10th at 5:30 a.m. Eastern time. More: WADA Appeals ...

Seventh-seeded Zheng Qinwen won four of the last five games fending off Barbora Krejcikova 6-3, 7-5 to reach the final of the WTA Finals. Photo credit: Robert Prange/Getty Wimbledon winner Barbora ...