
South Korea's Lee Sangsu competes during the men's singles semifinal match against China's Fan Zhendong at the 2017 World Table Tennis Championships in Dusseldorf, Germany, on June 5, 2017. (Xinhua/Shan Yuqi)

South Korea's Lee Sangsu competes during the men's singles semifinal match against China's Fan Zhendong at the 2017 World Table Tennis Championships in Dusseldorf, Germany, on June 5, 2017. (Xinhua/Shan Yuqi)