It makes sense that he would go through the protocols to make sure he is ok.
He's already had some pretty significant injuries in his young career. I hope Daboll is paying attention. Protect the franchise!
Better to punt on that play and have your QB for the rest of the game.
IMO Mahomes came very close to a broken neck on that play. Watch the replay. It's scary the way the Browns player is twisting his neck with two hands on his helmet. We almost had something very, very bad happen to the NFL's biggest young star.