Originally Posted by FluffyYellowBall
I never thought he would improve on clay since 05. I actually think the changes he made on clay will have a huge impact on his hard and grass season. So 2008 could be the year..
Imo it's the other way around, the big improvements are the serve and more modest gains on forehand and backhand on other surfaces that are helping him on clay. Last couple of years he would have lots of variation in serve speed going from one surface to the next, cutting back to the safe serve once he gets on the RG courts. He didn't do that at all this year, keeping the same motion all the way through. Didn't really pay off against federer, but a real weapon against the others in the tournament and will be necessary against djokovic off clay.
Ofcourse the other huge change, Physically he is just much much stronger, a real ogre!