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Grigor Dimitrov of Bulgaria celebrates after the men's singles fourth round match against Nick Kyrgios of Australia at Australian Open 2018 in Melbourne, Australia, Jan. 21, 2018. Grigor Dimitrov won 3-1. (Xinhua/Bai Xuefei)
Grigor Dimitrov of Bulgaria celebrates after the men's singles fourth round match against Nick Kyrgios of Australia at Australian Open 2018 in Melbourne, Australia, Jan. 21, 2018. Grigor Dimitrov won 3-1. (Xinhua/Bai Xuefei)