Dominika Cibulkova of Slovakia competes during the WTA Finals round robin match against Madison Keys of U.S. at Singapore Indoor Stadium, Oct. 25, 2016. Madison Keys won 2-0. (Xinhua/Then Chih Wey)
Dominika Cibulkova of Slovakia competes during the WTA Finals round robin match against Madison Keys of U.S. at Singapore Indoor Stadium, Oct. 25, 2016. Madison Keys won 2-0. (Xinhua/Then Chih Wey)