In the 2011 Giro, Contador was dominant. In the middle of the race, Nabali looked to be the second strongest and was in fact in second on GC. He launched a vicious, but desperate, attack because he felt he had to try something to crack Contador. It didn’t work and he fell to third in GC.
If Contador had been suspended within even 10 months of testing positive, there would have been no pressure for Nabali to attack Contador, he could have ridden against Scarponi and seems like he could have defended that lead. Instead Scarponi is now considered the winner of the 2011 Giro.