
Fan Zhendong of China serves the ball during the men's singles second round match against Par Gerell of Sweden at the 2017 World Table Tennis Championships in Dusseldorf, Germany, June 1, 2017. Fan Zhendong won 4-0. (Xinhua/Luo Huanhuan)

Fan Zhendong of China serves the ball during the men's singles second round match against Par Gerell of Sweden at the 2017 World Table Tennis Championships in Dusseldorf, Germany, June 1, 2017. Fan Zhendong won 4-0. (Xinhua/Luo Huanhuan)