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Croatia's Borna Coric hits a return during the men's singles quarterfinal match against Australia's Matthew Ebden at the Shanghai Masters tennis tournament on Oct. 12, 2018. (Xinhua/Ding Ting)
Croatia's Borna Coric hits a return during the men's singles quarterfinal match against Australia's Matthew Ebden at the Shanghai Masters tennis tournament on Oct. 12, 2018. (Xinhua/Ding Ting)