2019 ITTF Qatar Open kicks off in Doha

(190329) -- DOHA, March 29, 2019 (Xinhua) -- China's Ma Long reacts during the men's singles first round match against Tristan Flore of France at 2019 ITTF Qatar Open in Doha on March 28, 2019. Ma Long won 4-2. (Xinhua/Nikku)