Nadal has won a higher percentage of second serve on grass and hard than on clay. Also he has won a higher percentage on second serve on hard courts than Federer.
If Federer had Djokovic’s backhand and return and Nadal’s speed and stamina, he could be invincible as long as healthy. Wait, what’s the point of statements like these?
His draw was easy, but not the easiest in the history. It was not his faults that the seeded players in his half kept falling. Also Del potro is a slam winner.