But the unforced errors Federer makes against Nadal are indirectly forced--Federer feels so much pressure to hit a great shot he ends up choking. Against worse players he has more confidence that he can win his way.
That's kind of what I'm saying. All I'm saying though is that it's in Federer's head and he's scared of Nadal because he thinks Nadal's got his number. I still don't get how you explain more forehand errors than backhand errors and 5 missed break opportunities in a game (not match). This is possibly the best player to ever grace the court--he should get his act together.
I think Federer has played players on other surfaces who have also similarly challenged him but he has kept his composure, which is what he is known for. He played an amazing match against Safin in the Australian open a couple of years ago, and though he lost, it was a very hard-fought match. He was really challenged by Roddick in the Wimbledon final a couple of years ago, and he did fine in that as well. Not to mention he defeated Sampras himself when he was just 19 or whatever
I'm not taking anything away from Nadal's game--I just think that it's getting a little too much credit.