The sprint and lead up to it is no doubt going to be chaos. Positioning is going to be key, and every single team with a sprinter is going to be fighting hard to be in within the first 10 riders all in the hope of getting that first yellow jersey. Won't be surprised if we get carnage somewhere.
And don't forget that corner with 2000 meters to go. It's a long way to go from the finish but if someone screws up on it and they're near the front they could create a big barrier and some lesser known rider/sprinter could slip away for that first yellow jersey.
I say Cav to take the stage, OPQS will ride balls to the wall to keep everything under control for Cav. As long as they can keep him at the front and safe from crashes he'll be able to win the sprint.