Ons Jabeur tumbles out of Australian Open second round in less than an hour

Ons Jabeur has exited the Australian Open in the second round after a comprehensive defeat to teenager Mirra Andreeva on Wednesday.

The Tunisian sixth seed was well below her best, while the Russian debutant played one of the best matches of her prodigious career to claim a 6-0, 6-2 victory on Rod Laver Arena in just 54 minutes.

Ranked world No 47 and playing her first tournament at Melbourne Park, Andreeva was electric to earn her first win over a top-10 player, having burst onto the scene when she reached the fourth round at Wimbledon last year as a 16-year-old qualifier.

"I was really nervous before the match because I am really inspired by Ons and the way she plays," Andreeva said. "Before I started to play on the WTA tour I always watched her matches.

"In the first set I showed amazing tennis, I honestly didn't expect that from myself. I just wanted to play on this big court for the second time and just to enjoy the tennis and the time, and I did."

While making her professional debut at the tournament, Andreeva played on the Australian Open's primary stadium court last year when she made the girls' final, losing to fellow Russian Alina Korneeva.

"I feel like I am a bit more mature than I was before," she said. "Over this year I think I have changed a lot and I think you can see that on the court."

Having appeared to find form and momentum in the second set of her first-round win, Jabeur was completely out of touch on Wednesday.

She won only eight points across the six games of the first set, and just three from the baseline, while making 10 unforced errors. Her serve was not firing, either, with only 38 per cent of first serve points won and just 13 per cent on second serve.

Jabeur, a three-time Grand Slam finalist,