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China's Ma Long serves during the men's singles quarterfinal match against Germany's Timo Boll at the 2018 ITTF World Tour Platinum German Open in Bremen, Germany, on March 24, 2018. Ma won 4-1. (Xinhua/Binh Truong)
China's Ma Long serves during the men's singles quarterfinal match against Germany's Timo Boll at the 2018 ITTF World Tour Platinum German Open in Bremen, Germany, on March 24, 2018. Ma won 4-1. (Xinhua/Binh Truong)