The 3 points played in the 4th set tiebreak, after the score was 7-7, were fantastic. An unbelievable running forehand passing shot by Nadal to give him a championship point, a backhand passing shot by Federer down the line when a miss meant the match was over, and then a rally won by Federer to give him a set point on his racket, which he won with a big serve.
Going to 5 sets. Reminds me of the 1980 Borg-McEnroe match, which had an epic 4th set tiebreak won by McEnroe, who then lost the 5th set to Borg. I woke up very early in Vegas to watch that match on TV.
Nadal has to forget being up 5-2 in the tiebreak with 2 serves coming to him. And the double-fault on one of them.