Naomi Osaka of Japan plays a forehand return to Amanda Anisimova of the U.S. during their third round match at the Australian Open tennis championships in Melbourne.

Reigning champion Naomi Osaka crashed out in the third round of the Australian Open on Friday with a 4-6 6-3 7-6 (10-5) defeat to American Amanda Anisimova, ranked 60th in the world.

It was the first meeting between the four-time Grand Slam winner Osaka and Anisimova, who will next meet Australian world number one Ash Barty for a place in the quarter-finals of the year's opening major at Melbourne Park.

Australian Open: Reigning champion Naomi Osaka crashes out with defeat to Anisimova

It was the first meeting between the four-time Grand Slam winner Osaka and Anisimova, who will next meet Australian world number one Ash Barty for a place in the quarter-finals.

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