Xu Xin (1st L) of China listens to instructions by his coach during a game against Diogo Carvalho of Portugal during the fourth round of Men's group matches at 2018 World Team Table Tennis Championships in Halmstad, Sweden, May 1, 2018. Xu Xin won the game by 3-0, and team China won the match by 3-0. (Xinhua/Ye Pingfan)