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Marin Cilic of Croatia serves during the men's singles fourth round match against Pablo Carreno Busta of Spain at Australian Open 2018 in Melbourne, Australia, Jan. 21, 2018. Marin Cilic won 3-1. (Xinhua/Bai Xuefei)
Marin Cilic of Croatia serves during the men's singles fourth round match against Pablo Carreno Busta of Spain at Australian Open 2018 in Melbourne, Australia, Jan. 21, 2018. Marin Cilic won 3-1. (Xinhua/Bai Xuefei)