2019 ITTF Qatar Open kicks off in Doha

China's Xu Xin (R)/Liu Shiwen (C) listen to their coach Ma Lin during the mixed doubles quarterfinal match against South Korea's Lee Sangsu/Jeon Jihee at 2019 ITTF Qatar Open in Doha on March 28, 2019. Xu Xin /Liu Shiwen won 3-1. (Xinhua/Nikku)