Miami Dolphins QB Tua Tagovailoa trying new helmet to combat concussions
Dolphins quarterback Tua Tagovailoa placed in NFL concussion protocol
NFL, players' union agree to modify concussion protocol after Dolphins QB Tua Tagovailoa injury
Dolphins QB Tua Tagovailoa in concussion protocol
Dolphins say quarterback Tua Tagovailoa is not in concussion protocol - The Boston Globe
Tua Tagovailoa announces return after his concussion protocol stint via Twitter
Tua Tagovailoa's latest concussion to be investigated by NFL, NFLPA
NFL's concussion protocol modified after Tagovailoa review
Dolphins QB Tua Tagovailoa not in concussion protocol
Miami Dolphins QB Tua Tagovailoa back in concussion protocol - ESPN
Miami Dolphins QB Tua Tagovailoa out indefinitely after second head injury