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Hugo Dellien of Bolivia reacts during the men's singles first round match against Rafael Nadal of Spain at the Australian Open tennis championship in Melbourne, Australia on Jan. 21, 2020. (Xinhua/Wang Jingqiang)
Hugo Dellien of Bolivia reacts during the men's singles first round match against Rafael Nadal of Spain at the Australian Open tennis championship in Melbourne, Australia on Jan. 21, 2020. (Xinhua/Wang Jingqiang)