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Naomi Osaka of Japan hits a return during the women's singles final match between Naomi Osaka of Japan and Petra Kvitova of the Czech Republic at 2019 Australian Open in Melbourne, Australia, Jan. 26, 2019. (Xinhua/Lui Siu Wai)
Naomi Osaka of Japan hits a return during the women's singles final match between Naomi Osaka of Japan and Petra Kvitova of the Czech Republic at 2019 Australian Open in Melbourne, Australia, Jan. 26, 2019. (Xinhua/Lui Siu Wai)