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Marin Cilic of Croatia celebrates scoring during the men's singles first round match against Vasek Pospisil of Canada at Australian Open 2018 in Melbourne, Australia, Jan. 15, 2018. Marin Cilic won 3-1. (Xinhua/Zhu Hongye)
Marin Cilic of Croatia celebrates scoring during the men's singles first round match against Vasek Pospisil of Canada at Australian Open 2018 in Melbourne, Australia, Jan. 15, 2018. Marin Cilic won 3-1. (Xinhua/Zhu Hongye)