thats a silly assumption to make, he will win wimbledon no doubt, hes by far the best grass courter on the tour, the french open is another story, Coria, Ferrero, Moya and Nalbandian are all better than him on the clay and if they play their best, each should beat him there. Aus open and US open are on hard court, so it gives anyone a chance to win it if they play to their potential, its hard to win 7 matches in a row against class opposition, there are players out there who can beat him...
also the fact no player that has won 3 or more grand slams in a year had been able to win slam the next year says alot, hes a marked man, given that, it will be a miracle if he doesnt win at wimbledon, but the other slams will go elsewhere this year imo...