Angelique Kerber of Germany competes during the WTA Finals match against Dominika Cibulkova of Slovakia at Singapore Indoor Stadium, Oct. 30, 2016. Cibulkova won 2-0. (Xinhua/Then Chih Wey)
Angelique Kerber of Germany competes during the WTA Finals match against Dominika Cibulkova of Slovakia at Singapore Indoor Stadium, Oct. 30, 2016. Cibulkova won 2-0. (Xinhua/Then Chih Wey)