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Marin Cilic of Croatia hits a return during the second round of men's singles match against Borna Coric of Croatia at the 2018 Rogers Cup in Toronto, Canada, Aug. 7, 2018. Marin Cilic won 2-0. (Xinhua/Zou Zheng)
Marin Cilic of Croatia hits a return during the second round of men's singles match against Borna Coric of Croatia at the 2018 Rogers Cup in Toronto, Canada, Aug. 7, 2018. Marin Cilic won 2-0. (Xinhua/Zou Zheng)