[Scott Douglas]

I think it'd be interesting to see a sync'd, side-by-side view from overhead with that from the front view. It's pretty hard to see when the elbow action takes place and the relative positions of the riders to Sagan's left. Not defending Sagan at all, but it did look like Cav was trying to go where there really wasn't any space for him and you know Sagan isn't going to go left to make room either.
I feel for the guys that went over Cav after he went down. They didn't have a choice.
I think the Tour was lucky that big crash happened before this one or there would have been a lot more riders hurt.