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Ma Long of China warms up before the men's singles quarterfinal match against Dimitrij Ovtcharov of Germany at the 2019 ITTF Men's World Cup in Chengdu, southwest China's Sichuan province, Nov. 30, 2019. (Xinhua/Xue Yubin)
Ma Long of China warms up before the men's singles quarterfinal match against Dimitrij Ovtcharov of Germany at the 2019 ITTF Men's World Cup in Chengdu, southwest China's Sichuan province, Nov. 30, 2019. (Xinhua/Xue Yubin)