Australian Open: Day 6

Australian Open: Day 6

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No. 1 Victoria Azarenka got past American Jamie Hampton 6-4, 4-6, 6-2 to reach the round of 16.

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Azarenka dropped a set for the first time in Melbourne. She'll face Elena Vesnina next.

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Redfoo from LMFAO looks on from Azarenka's match.

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Hampton, 23, had to be treated for back problems and said she has two herniated disks.

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No. 6 Juan Martin del Potro lost 6-3, 6-3, 6-7 (3), 3-6, 6-3 to Jeremy Chardy.

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Del Potro was looking to stay alive and set up a potential quarterfinal match with No. 3 Andy Murray.

Quinn Rooney

No. 3 Serena Williams beat Ayumi Morita 6-1, 6-3. She'll face No. 14 Maria Kirilenko next.

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A fan with obviously confused allegiances watches France's No. 9 Richard Gasquet beat Ivan Dodig 4-6, 6-3, 7-6 (2), 6-0.

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No. 7 Jo-Wilfried Tsonga beat Blaz Kavcic 6-2, 6-1, 6-4 to set up an all-French fourth round with Gasquet.

Chris Hyde

No. 3 Andy Murray beat Ricardas Berankis 6-3, 6-4, 7-5 and hasn't dropped a set yet.

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Julian Finney

No. 29 Sloane Stephens beat Laura Robson 7-5, 6-3 in a matchup of teen sensations.

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Robert Prezioso

No. 10 Caroline Wozniacki took out Lesia Tsurenko 6-4, 6-3 to set up a fourth-round date with Svetlana Kuznetsova.

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No. 2 Roger Federer beat Bernard Tomic 6-4, 7-5 (6), 6-1. He'll face No. 13 Milos Raonic in the fourth round.

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Cameron Spencer

Tomic, who won his first ATP title in Sydney this year, was the last Australian left in the draw.