Naomi Osaka

Fifteen-year-old American Coco Gauff pulled off a big upset at the Australian Open by eliminating defending champion Naomi Osaka in straight sets in the third round. This is only the third Grand Slam tournament of Gauff's career but already her second time reaching the fourth round...

American teenager Coco Gauff has set up another showdown against Naomi Osaka in a Grand Slam tournament. Serena William and Novak Djokovic advance in Australia Open

Coco Gauff is just 15 but she now owns two Grand Slam victories over 39-year-old Venus Williams. Gauff moved into the second round at the Australian Open.

The second-seeded Czech struggled in the longer rallies of a 6-3, 6-3 loss to No. 31 Petra Martic in the third round of the French Open.

Naomi Osaka never got past the fourth round at any of the first 10 Grand Slam tournaments of her career. Now, on the verge of a second consecutive major championship.

Naomi Osaka has reached the quarterfinals of the Pan Pacific Open with a powerful play scored a 6-2, 6-1 win over Dominika Cibulkova.

Naomi Osaka U.S Open win has open a door how some children from mixed race families in Japan often get bullied and demeaned due to that they aren't fully Japanese.

United States' Davis Cup team captain Jim Courier said there was nothing to discuss with his team over Ramos. "Ramos was just enforcing the rules as he sees them."

After a heated match and confronting the Court Judge, Serena Williams was fined $17,000 for three violations during her loss to Naomi Osaka in the U.S. Open final.

Serena has advanced to the U.S. Open finals for the chance to tie Margaret Court with the 24th major singles trophy. Serena will face Naomi Osaka in the finals.