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Diego Schwartzman of Argentina reacts during the men's singles fourth round match against Rafael Nadal of Spain at Australian Open 2018 in Melbourne, Australia, Jan. 21, 2018. Schwartzman lost by 1-3. (Xinhua/Zhu Hongye)
Diego Schwartzman of Argentina reacts during the men's singles fourth round match against Rafael Nadal of Spain at Australian Open 2018 in Melbourne, Australia, Jan. 21, 2018. Schwartzman lost by 1-3. (Xinhua/Zhu Hongye)