2009 champion Nadal will be second seed, followed by Federer and Murray.
In the women´s draw, world no.1 Caroline Wozniacki will be top seed, followed by 2011 Wimbledon champion Petra Kvitova. No. 3 and 4 seeds will be Victoria Azarenka and Maria Sharapova.
Defending champion Kim Clisters should be playing as well, despite her sustained injury during the Brisbane International last week.