Rafael Nadal plays very stable now, maybe not too sharp and aggresive as he used to play before his injury, but enough to beat opponents. His left-handed serve can do a lot of troubles to Novak because Novak not good in returning. He defeat his opponents only because he is one class higher than they are. Also he do a lot of unforced errors especially in crucial moments. I saw his game against Roddick so he played terrible Roddick collect his unforced errors and Djokovic had nothing to do with that. On tie-break he make two double faults, so it mirror his true form.