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Borna Coric of Croatia hits a return during the men's singles semifinal match against Switzerland's Roger Federer at 2018 ATP Shanghai Masters tennis tournament in Shanghai, east China, Oct. 13, 2018. (Xinhua/Fan Jun)
Borna Coric of Croatia hits a return during the men's singles semifinal match against Switzerland's Roger Federer at 2018 ATP Shanghai Masters tennis tournament in Shanghai, east China, Oct. 13, 2018. (Xinhua/Fan Jun)