NFL’s handling of concussions questioned after Tua’s injury The NFL’s handling of concussions has evolved dramatically from the days when players were given smelling salts on the bench and sent back into the game.Still, football is a violent sport and injuries similar to the frightening one Miami Dolphins quarterback Tua Tagovailoa suffered Thursday night seem unavoidable unless the NFL bans tackling and turns the game into flag football like it did for the Pro Bowl.Tagovailoa’s quick return Sunday prompted a joint review by the NFL and NFLPA.Tagovailoa and the team explained his legs were wobbly because of a back injury.Sills said “it’s impossible to know” if the injury Tagovailoa sustained Thursday was exacerbated by the hit he took Sunday."