
The United States' player Madison Keys returns the ball during the WTA Finals round robin match against Germany's player Angelique Kerber at Singapore Indoor Stadium, Oct. 27, 2016. Keys lost 0-2.(Xinhua/Then Chih Wey)

The United States' player Madison Keys returns the ball during the WTA Finals round robin match against Germany's player Angelique Kerber at Singapore Indoor Stadium, Oct. 27, 2016. Keys lost 0-2.(Xinhua/Then Chih Wey)
|
||||||||||||||||||||||||||||||||||||||||||||||||||