Fed will do well to win a set. He played plenty well enough against Tomic & Del Potro, but they have completely different games from Nadal's, & similar tactics won't work against Nadal. Neither Tomic nor Del Potro gets the ball up high to Fed's backhand, & Berdshit has played Nadal into form. On that horrible day in January 2009, Fed was let down by a low 1st-serve percentage, having easily beaten Del Po, while Nadull had come through a marathon against Verdasco - & guess what's happening this time? Nadull in straights, 7-6,7-5,7-6.