Originally Posted by spalco
If Merckx couldn't do it, then Contador can't either.
To be fair, in those days the Vuelta was in April. Merckx was too busy killing everybody in the Classics to really give it a go.
The only way I see this working is to hold all 3 in one go, in a calendar year rather than one year.
The most likely way is to win the Tour and then hold on for the Vuelta (the slower average speed of the Vuelta péloton makes this more likely than the Giro-Tour double) - two of the 2007 Tour top 5 were top 5 in the ensuing Vuelta (Sastre and Evans), while Sastre won the Tour then podiumed the Vuelta in 2008 (and I think we'd all agree that peak form Contador > peak form Sastre). Then, after that, focus on the Giro the following year.