NFL and NFLPA to make changes to Concussion Protocol to improve player safety after Tua injury
NFL-NFLPA conclude concussion protocol was followed with Tua Tagovailoa; add modification to 'no-go' symptoms
NFL, NFLPA agree to parameters of updated concussion protocols
NFL's Concussion Protocol Modified After Tagovailoa Review
NFL's concussion protocol modified after Tua Tagovailoa review - The Boston Globe
Dr. Allen Sills vows to release results of Tua Tagovailoa investigation to everyone - NBC Sports
N.F.L.'s Concussion Protocol Under Scrutiny After Tagovailoa Injuries - The New York Times
Latest Tua Tagovailoa Concussion Reignites Player Health Debate
WATCH: Top NFL doctor goes in-depth into Tua Tagovailoa injury, league concussion protocol
Explaining the NFL's latest concussion controversy and policy change : NPR
Dolphins followed concussion protocol with Tagovailoa's injury
NFL, players' union agree to modify concussion protocol after Dolphins QB Tua Tagovailoa injury
NFL-NFLPA agree to a change in concussion protocols