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MELBOURNE, AUSTRALIA - JANUARY 26: Naomi Osaka (L) of Japan poses for a photo with her trophy after winning Australian Open 2019 Women's Singles final match against Petra Kvitova (R) of Czech Republic in Melbourne, Australia on January 26, 2019. (Photo by Recep Sakar/Anadolu Agency/Getty Images)

MELBOURNE, AUSTRALIA - JANUARY 26: Naomi Osaka (L) of Japan poses for a photo with her trophy after winning Australian Open 2019 Women's Singles final match against Petra Kvitova (R) of Czech Republic in Melbourne, Australia on January 26, 2019. (Photo by Recep Sakar/Anadolu Agency/Getty Images)