http://sports.sina.com.cn/others/pingpang/2019-03-04/doc-ihsxncvf9509630.shtml
When asked about the status of Ma Long, Qin Zhijian, the former head coach and now head coach of the National Table Tennis Team, said: "Ma Long has also come, he has been doing some rehabilitation...After two weeks of hard work, the process of recovery is quite nice. In fact, while they were playing, Ma Long has been training in the training hall, and he is making good progress in recovery. So we signed him up for the Qatar Open. We hope through the preparation and some recovery during the closed training, that he can play in Qatar."
... As for the final lineup for WTTC, how will it be released and when will it be released? Coach Qin Zhijian also responded: "The announcement will probably be from early March to mid-March...We've actually released the whole plan of our preparations, which is divided into several parts. The Panel will come up with suggestions and opinions to be studied at the meeting and rationally arrange our doubles, mixed doubles and singles spots. Our ultimate goal is the Tokyo Olympics!"