Tua Tagovailoa entered the NFL's concussion protocol on Monday, a day after he apparently sustained and played through a head injury against the Green Bay Packers.
The incident raised two key questions: Why wasn't Tagovailoa's injury identified during the game, and should he continue to play this season after multiple head injuries? The NFL and the NFLPA's top doctors addressed both questions on Tuesday.
Dr. Allen Sills, the NFL's chief medical officer, told NFL Network that nothing from Sunday's game should have triggered the NFL's concussion protocol for the Miami Dolphins quarterback.