Originally Posted by 6-1 6-3 6-0
Even if Nadal loses AO 2013, then Nadal has SIX months to get into his Roland Garros groove, and since Nadal's game is based on confidence, then Nadal's confidence can propel him to the remaining 3 slams, matching Sampras by at least the US Open.
He has 3 and a bit months between the end of the AO and the start of RG. The guys who price tennis matches for a living have him at 5/4 to win RG - that's the first time in about 6 years that he hasn't been odds on to win it.
I think you are only considering the best case scenario.