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Zhao Zihao/Zhu Linfeng (L) of China compete during a men's doubles quarterfinal match against Cho Daeseong/Lee Sangsu of South Korea at the 2019 ITTF Czech Open in Olomouc, the Czech Republic, Aug. 23, 2019. (Xinhua/Shan Yuqi)
Zhao Zihao/Zhu Linfeng (L) of China compete during a men's doubles quarterfinal match against Cho Daeseong/Lee Sangsu of South Korea at the 2019 ITTF Czech Open in Olomouc, the Czech Republic, Aug. 23, 2019. (Xinhua/Shan Yuqi)