It is quite difficult but not impossible. Andujar doesn't play very well on the hard surface. He is a specialist on red clay like all the spanish players in general.
Djokovic or Federer for the title. Nadal I don´t think so.
On Women I hope a new face like the Canadian on the US Open.
Serena looks very heavy. If her oponent move her around a lot she is not gonna last.