
Ding Ning of China serves during the women's singles final match against her compatriot Zhu Yuling at the 2017 World Table Tennis Championships in Dusseldorf, Germany, June 4, 2017. (Xinhua/Luo Huanhuan)

Ding Ning of China serves during the women's singles final match against her compatriot Zhu Yuling at the 2017 World Table Tennis Championships in Dusseldorf, Germany, June 4, 2017. (Xinhua/Luo Huanhuan)