Report: Tua Tagovailoa enters NFL's concussion protocol, unlikely to play crucial game vs. Patriots - Dolphin Nation
NFL, players' union agree to modify concussion protocol after Dolphins QB Tua Tagovailoa injury
Miami Dolphins' Tua Tagovailoa Suffers Second Head Injury in a Week
Tua Tagovailoa's Injury Wasn't Just a Failure of Protocol
Other Sports: NFL-Dolphins' QB Tagovailoa in concussion protocol
Miami Dolphins QB Tua Tagovailoa trying new helmet to combat concussions
Miami Dolphins QB Tua Tagovailoa not in concussion protocol, coach Mike McDaniel says - ESPN
NFLPA wants to investigate how Dolphins handled Tua Tagovailoa injury
NFL to make changes to the league's concussion protocol - CBS Philadelphia