Won't have too long to find out. The next clay season will be mighty interesting. According to some he can win everything there on one leg but I think it'll be a lot harder than that if he's not fully fit. Just a 5% drop off could see him looking mighty glum.
“There is no best. There is just the discussion of who is best. Federer, he will always be in the first part of such a discussion.” Rino Tommasi