The 2011 RG match between Roger and Novak. I don't recall there being a match with the same amount of tension heading into it from the OP period. Federer and Nadal of course were a rivalry, but you could always sense a fondness between them which was lacking in this pairing. The level was of course beyond anything I expected. Novak brought an unusual combination of power and depth to his strokes to make up for his below par mobility, and Roger's ability to take advantage of the unusually quick conditions with his backhand slice, his use of his unrelenting forehand, net attacks and ace serves on crucial points to execute his strategy of pushing Djokovic into uncomfortable positions in order to take advantage of his below par mobility, and mental strength to hold it all together on crucial points were at their highest and got him a well deserved win, one that I will go so far as to say was his greatest. It was certainly a statement from the Maestro that if Djokodal were not at their very best, then he would certainly beat them at his!