Undoubtedly the No.1 in the ATP and world tennis today.An invincible defence and superior mental strength are the key to his wins.To beat him would require a fearless brand of tennis from his rivals and competitors which is sorely missing. Andy has mental block against Novak and so do Nadal and Fedex. Federer is sublime and superior on many counts given his versatility but on big occasions in Grand slams he just caves in mentally. Just proves at the top its mental strength that counts more than anything else.One can play within ones limitations yet win big tournaments if killer instinct is there. Nadal proved it earlier when he won all those big tournaments few years back and Djokovic is proving the same. The only difference Novak has almost the best return of serve in the game and very very solid defence while Nadal was more of a retriever relying on his athleticism. Kudos to Novak for being a winner so consistently its almost become boring. Time for some new shake up! New Champ!