Angelique Kerber of Germany competes during the WTA Finals round robin match against Simona Halep of Romania at Singapore Indoor Stadium, Oct. 25, 2016. Angelique Kerber won 2-0. (Xinhua/Then Chih Wey)
Angelique Kerber of Germany competes during the WTA Finals round robin match against Simona Halep of Romania at Singapore Indoor Stadium, Oct. 25, 2016. Angelique Kerber won 2-0. (Xinhua/Then Chih Wey)