Can Novak Djokovic Win Australian Open in 2009?

The defending champion ended last year on a high winning the masters cup in Shanghai. If he is playing well he is very capable of retaining his title but faces a tough defence of his title from the other three and possibly others like tsonga and nalbandian that is on form could take him out. Hard Court is Novak's favourite surface and is probably the second best on this surface after Federer when they are all at there best. Novak would rather have nadal in the semis but I think if playing well he could take both nadal out in semis and federer out in the final.