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