[jyl]

Baz, no-one was moving right in a way that forced Sagan to move right. Demare was well ahead of Sagan and was moving left to cut in front of Bouhanni. Bouchanni was also ahead of Sagan and sprinting in a straight line for once. There was no-one immediately to Sagan's left. The overhead makes that very clear.

I think they can get away with closing a gap that a rival is aiming to get into. Maybe that's not technically permitted but sprinters don't usually get penalized for it, unless they have a pattern of doing it like Bouhanni, who gets penalized at the drop of a hat now. But if you've let your rival get into the gap - as Cav clearly was, his body was partly overlapping Sagan's body - then I think closing the gap becomes riding the guy into the barriers. Big no-no.