
Lin Gaoyuan(R) of China greets his compatriot Xu Xin after the men's singles match at the 2017 World Table Tennis Championships in Dusseldorf, Germany, June 4, 2017. (Xinhua/Tao Xiyi)

Lin Gaoyuan(R) of China greets his compatriot Xu Xin after the men's singles match at the 2017 World Table Tennis Championships in Dusseldorf, Germany, June 4, 2017. (Xinhua/Tao Xiyi)