Once upon a time, the hits that caused players to crumple to the ice, get immobilized, carted out the arena on a stretcher and shipped to the hospital with a severe concussion were easy to demonize.

Ravens rookie Odafe Oweh knocked Broncos quarterback Teddy Bridgewater out of the game Sunday, but indicated Wednesday it was not his intent. Bridgewater sustained a concussion on a third-down play ...