How does NFL protocol work? What does Tua Tagovailoa's hit mean?
NFL's concussion protocol modified after Tagovailoa review
Explaining the NFL's latest concussion controversy and policy change : NPR
The Tua Tagovailoa effect? At least a dozen players benched Sunday under NFL concussion protocols
Tua Tagovailoa Is in the NFL's Concussion Protocols Again - WSJ
NFL claims concussion protocols didn't fail Tua Tagovailoa on Sunday. That's hard to believe after Thursday's scary head injury
Dolphins QB Tua Tagovailoa's injury sparks concern over the NFL's concussion policies
Source - NFLPA wants review of concussion protocols after Miami Dolphins QB Tua Tagovailoa's quick return to game - ESPN
Dolphins deny Tua Tagovailoa played with concussion as NFL investigates, Miami Dolphins