Naomi Osaka beat Petra Kvitova to win the Australian Open, becoming Asia's first No. 1 ranked player in tennis.

While Naomi Osaka is busy competing — and winning — at the Australian Open, she needed to send someone to retrieve her 1 1/2-year-old daughter’s birth certificate from their California home in case it ...

Two-time Australian Open champion Naomi Osaka has stopped playing because of an injury after dropping the opening set of her ...

Four-time major champion Naomi Osaka and World No. 1 Aryna Sabalenka headline the women's competition, while World No. 1 ...

Naomi Osaka ’s return to Grand Slam competition ended prematurely on Friday, as the two-time Australian Open champion was ...

The 1-6, 6-1, 6-3 victory over Karolina Muchova allowed Osaka to reach the third round at a major tournament for the first ...

A four-time Grand Slam champion, Osaka returned from maternity leave last year and lost in the first or second round of all ...

While playing in the Australian Open, tennis star Naomi Osaka needed someone to grab her daughter's birth certificate during ...

At her peak, the four-time Grand Slam champion played her best tennis in the toughest moments. In Melbourne, she did it again ...

Naomi Osaka may be on the other side of the world, but her mind is very much on her home. After defeating Caroline Garcia, ...

Naomi Osaka revealed she had to act quickly to safeguard a valuable item as wildfires came within three blocks of her Los ...

Naomi Osaka, with LA wildfires on her mind, called her 6-3, 3-6, 6-3 win against Caroline Garcia in the Australian Open first ...