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Grigor Dimitrov of Bulgaria competes during the men's singles first round match against Dennis Novak of Austria at Australian Open 2018 in Melbourne, Australia, Jan. 15, 2018. Dimitrov won 3-0. (Xinhua/Li Peng)
Grigor Dimitrov of Bulgaria competes during the men's singles first round match against Dennis Novak of Austria at Australian Open 2018 in Melbourne, Australia, Jan. 15, 2018. Dimitrov won 3-0. (Xinhua/Li Peng)