However, I also don't agree with you that if a player beats another in a big match, it's because he's in his head. You're getting lost in the big 3. Murray didn't beat Djokovic in USO '12 because he was 'in his head,' nor did he beat Novak in '13 Wimbledon for that reason. Or win the OGs 2x. Murray wasn't really in anyone's head, nor was especially Wawrinka. I don't think that's why he beat Novak at RG '15 or USO '16. Sometimes, they just outplay them. Or they also get in their own way, as I think Djokovic did in RG '15. Not to take away from Stan.
I should've elaborated. I didn't just mean 1 big match, but when it becomes a pattern.
Nadal defeated Federer 6-3, 6-3 in Miami 04 when Nadal was only 17 years old. Was Nadal in Fed's head back then? of course not.. Then Nadal started to make finals and beat Federer.. he then faced Fed in 05 Miami and almost beat him again, won first 2 sets, lost in 5. He then beat Fed in Dubai, MC, Rome, FO finals in 06! One of Fed's most dominant years. By this time, of course he was in Fed's head because Federer was shell shocked that this spanish 'grinder' was the only player who could beat him, consistently. What i argue is that just because Nadal was in his head, it didn't mean Federer was mentally weak, these are two completely different things. Nadal was in Fed's head 100% because of Nadal's quality of tennis, something Fed fans refuted, vigorously.
As far as Nadal vs Novak, i'm sure you agree that we have never seen Nadal so lost during 2011 year, never seen that look in his face as if he was facing someone invincible. Novak was never in Nadal's head before 2011, but after Djokovic beat him at IW, Miami, MC, Rome... he was definitely in Nadal's head... Nadal looked helpless and his eyes said it all. Novak then went on destroy Nadal at Wimbledon and beat him at USO. So Novak was in his head but this DOESN'T MEAN Nadal all of sudden became a mental midget, weak mentally and just played poorly vs Novak, IT WAS NOVAK'S GAME.
being is someone's head <> someone being weak, something Fed fans can't separate.
Nadal has attributes that Fed struggled with - his angles, lefty fh, speed, spins and ability to make passing shots off difficult positions. Roddick had none of these attributes and Hewitt only the speed. Nadal just kept making Federer hit extra, extra balls and he would switch defense to offense in a heartbeat, he would also pound Fed's bh relentlessly... this was all QUALITY.
Novak is a nightmare for Nadal as he takes Nadal's weapons away - spin and angles. Novak runs down all of the angles Nadal uses effectively vs even Fed, but Novak is best mover in the game. Novak's ability to take ball on the rise and power through Nadal's heavy shots takes Nadal's spin away... Ontop of this, Novak keeps the ball very deep, unlike any other, which forces Nadal to play back and leave balls short. The icing on the cake is the return - he punishes Nadal's serve, which is underrated but Novak is best returner ever. As you saw in AO final, Novak took Nadal's spin, angles and serve away... rendering Nadal helpless.. what could he do at that point? hit flat and blow past winners past Djokovic... not Nadal;s game. Rafa destroys opponents by attacking with angles, some deep, some short, once opponents are off the court, Nadal pounces...Novak is too fast and has an uncanny ability to run down winners and actually hit deep and with pace, some of those balls he stretched for vs Nadal was outrageous. I've never seen a player beat Nadal bh to fh, something only Djokovic can do, his bh is crazy good.