Teen Eliminates Naomi Osaka From Australian Open

Third-seeded Naomi Osaka has suffered a shock defeat to 15-year-old Coco Gauff at the Australian Open.

Osaka's Australian Open title defence was over in the third round after her elimination by American teenager.

World No.4 Osaka fell to the 15-year-old 6-3 6-4 in front of a stunned Rod Laver Arena crowd.

The Japanese star was let down by 29 unforced errors with Gauff.

Gauff is the youngest player in the women's draw and it's her first time playing at the Australian Open.