Rafael Nadal and Caroline Wozniacki were given the top seeds for the 2011 Australian Open that begins Jan. 17. It is the second major in a row both Nadal and Wozniacki are seeded No. 1.
The men's and women's seeds follow the ATP and WTA rankings respectively.
Defending champion Roger Federer is seeded No. 2, followed by Novak Djokovic, Robin Soderling and last year's runner-up, Andy Murray.
Nadal, the 2009 Australian Open champion, won three of four majors last year but fell short at the Australian Open, where he had to retire in his quarterfinal match against Murray with a knee injury. Nadal claimed a career Grand Slam at the U.S. Open and will hold all four majors with a title at Melbourne Park this year. Nadal, 24, seeks his 10th career Grand Slam and his second Australian Open.
The American seeds on the men's side of the draw are No. 8 Andy Roddick, No. 16 Mardy Fish, No. 18 Sam Querrey and No. 20 John Isner.
On the women's side, Wozniacki enters a major with the top seed for the second time in her career. The 20-year-old Dane finished last season ranked No. 1 but has yet to win a Grand Slam. Last year's champion, Serena Williams, will not play due to injury.
The only American seed on the women's side is Venus Williams at No. 4.
The official draw will be announced on Friday at Melbourne Park.
Below is the complete list of seeds:
Men
No. 1 Rafael Nadal
No. 2 Roger Federer
No. 3 Novak Djokovic
No. 4 Robin Soderling
No. 5 Andy Murray
No. 6 Tomas Berdych
No. 7 David Ferrer
No. 8 Andy Roddick
No. 9 Fernando Verdasco
No. 10 Mikhail Youzhny
No. 11 Jurgen Melzer
No. 12 Gael Monfils
No. 13 Jo-Wilfried Tsonga
No. 14 Nicolas Almagro
No. 15 Marin Cilic
No. 16 Mardy Fish
No. 17 Ivan Ljubicic
No. 18 Sam Querrey
No. 19 Stanislas Wawrinka
No. 20 John Isner
No. 21 Marcos Baghdatis
No. 22 Michael Llodra
No. 23 Nikolay Davydenko
No. 24 Ernests Gulbis
No. 25 Albert Montanes
No. 26 Juan Monaco
No. 27 David Nalbandian
No. 28 Richard Gasquet
No. 29 Viktor Troicki
No. 30 Thomaz Bellucci
No. 31 Feliciano Lopez
No. 32 Guillermo Garcia-Lopez
Women
No. 1 Caroline Wozniacki
No. 2 Vera Zvonareva
No. 3 Kim Clijsters
No. 4 Venus Williams
No. 5 Samantha Stosur
No. 6 Francesca Schiavone
No. 7 Jelena Jankovic
No. 8 Victoria Azarenka
No. 9 Na Li
No. 10 Shahar Peer
No. 11 Justine Henin
No. 12 Agnieszka Radwanska
No. 13 Nadia Petrova
No. 14 Maria Sharapova
No. 15 Marion Bartoli
No. 16 Anastasia Pavlyuchenkova
No. 17 Aravane Rezai
No. 18 Maria Kirilenko
No. 19 Ana Ivanovic
No. 20 Kaia Kanepi
No. 21 Yanina Wickmayer
No. 22 Flavia Pennetta
No. 23 Svetlana Kuznetsova
No. 24 Alisa Kleybanova
No. 25 Petra Kvitova
No. 26 Maria Jose Martinez Sanchez
No. 27 Alexandra Dulgheru
No. 28 Daniela Hantuchova
No. 29 Dominika Cibulkova
No. 30 Andrea Petkovic
No. 31 Lucie Safarova
No. 32 Tsvetana Pironkova
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