Nadal, Serena Williams are top seeds at Australian Open
Defending champion Novak Djokovic is the No. 2-seeded man, followed by David Ferrer, Wimbledon champion Andy Murray, Juan Martin del Potro and 17-time Grand Slam champion Roger Federer at sixth.
On the women's side, defending champion Victoria Azarenka is No. 2, followed by Maria Sharapova, Li Na, Agnieszka Radwanska and former Wimbledon champion Petra Kvitova in sixth.
The 32 seeds were altered just twice from the rankings, both because of injuries. No. 29-ranked Jurgen Melzer is not playing because of a left shoulder injury and Maria Kirilenko, who would have been seeded 18th, has a left knee injury.
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