Australian Open Champ Naomi Osaka Becomes Asia’s First No. 1 in Tennis
12:01am PST - January 28th, 2019 novak djokovic - TimeAustralian Open champion Naomi Osaka is the youngest woman to make her debut at No. 1 in nine years
Australian Open champion Naomi Osaka is the youngest woman to make her debut at No. 1 in nine years