In pics: men's singles round of 32 match at German Open

Germany's Dimitrij Ovtcharov serves during the men's singles round of 32 match against Germany's Patrick Franziska at the 2018 ITTF World Tour Platinum German Open in Bremen, Germany, on March 23, 2018. Dimitrij Ovtcharov retired due to injury. (Xinhua/Binh Truong)