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Elise Mertens hits a return during the women's singles quarterfinal match between Bianca Andreescu of Canada and Elise Mertens of Belgium at the 2019 US Open in New York, the United States, Sept. 4, 2019. (Xinhua/Li Muzi)
Elise Mertens hits a return during the women's singles quarterfinal match between Bianca Andreescu of Canada and Elise Mertens of Belgium at the 2019 US Open in New York, the United States, Sept. 4, 2019. (Xinhua/Li Muzi)