Roddick, Djokovic advances at Aussie Open

Sports Network

, Last Updated: 11:32 PM ET

Melbourne, Australia - Third-seeded Novak Djokovic and eighth-seeded American Andy Roddick each won their respective third-round matches Friday at the 2011 Australian Open.

Djokovic, the 2008 champion, was leading fellow Serb Viktor Troicki 6-2 when the No. 29 seed retired due to illness. The match lasted just 39 minutes.

Nicolas Almagro, the No. 14 seed, of Spain defeated 17th-seeded Croat Ivan Ljubicic 6-4, 7-6 (10-8), 6-3 to set up a fourth-round match with Djokovic.

Roddick battled back to beat Robin Haase of the Netherlands 2-6, 7-6 (7-2), 6-2, 6-2.

Roddick was playing in the third round of the Aussie Open for the ninth straight year. He's never won the title, however, reaching the semifinals four times, and last year was beaten in the quarters. The American star could face Federer in this year's quarterfinals.

The winner of the Gael Monfils/Stanislas Wawrinka will play Roddick in the fourth round.

Roger Federer is also scheduled to play on Friday. Federer, the defending champ and a four-time winner at Melbourne Park, will face Belgium's Xavier Malisse.


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