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TOKYO, JAPAN - SEPTEMBER 25: Caroline Wozniacki of Denmark (R) and Naomi Osaka of Japan (L) pose with their trophies after the Women's singles final match of the Toray Pan Pacific Open 2016 International Tennis Tournament at the Ariake Colosseum in Tokyo, Japan on September 25, 2016. Caroline Wozniacki won the match. (Photo by Nicolas Datiche/Anadolu Agency/Getty Images)

TOKYO, JAPAN - SEPTEMBER 25: Caroline Wozniacki of Denmark (R) and Naomi Osaka of Japan (L) pose with their trophies after the Women's singles final match of the Toray Pan Pacific Open 2016 International Tennis Tournament at the Ariake Colosseum in Tokyo, Japan on September 25, 2016. Caroline Wozniacki won the match. 
 (Photo by Nicolas Datiche/Anadolu Agency/Getty Images)