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Grigor Dimitrov of Bulgaria returns the ball during the men's singles second round match against Pablo Cuevas of Uruguay at the Australian Open in Melbourne, Australia, Jan. 16, 2018. (Xinhua/Hu Jingchen)
Grigor Dimitrov of Bulgaria returns the ball during the men's singles second round match against Pablo Cuevas of Uruguay at the Australian Open in Melbourne, Australia, Jan. 16, 2018. (Xinhua/Hu Jingchen)