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Novak Djokovic of Serbia returns a shot during the men's singles fourth round match against Chung Hyeon of South Korea at Australian Open 2018 in Melbourne, Australia, Jan. 22, 2018. Djokovic lost by 0-3. (Xinhua/Li Peng)
Novak Djokovic of Serbia returns a shot during the men's singles fourth round match against Chung Hyeon of South Korea at Australian Open 2018 in Melbourne, Australia, Jan. 22, 2018. Djokovic lost by 0-3. (Xinhua/Li Peng)