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Ma Long of China serves during the singles semifinal match against Timo Boll of Germany at the 2017 ITTF Men's World Cup in Liege, Belgium, Oct. 22, 2017. Timo Boll won 4-3. (Xinhua/Ye Pingfan)
Ma Long of China serves during the singles semifinal match against Timo Boll of Germany at the 2017 ITTF Men's World Cup in Liege, Belgium, Oct. 22, 2017. Timo Boll won 4-3. (Xinhua/Ye Pingfan)