karlboss said:20/20 hindsight is great, but Cancellara had one card played it and came second, dropping back to the Sagan group his odds would have been about the same as leading out Gerrans.
He was going full gas when he was at the front, and the chase group behind was charging downhill, i doubt very much he could have fallen back and stayed at the front of the chase group. It's very hard to start all over again when you go all in like that.