NFL and players union agree to updated concussion protocol, Sports
NFL Concussion Protocol Under Fire After Dolphins QB Injured - BNN Bloomberg
Tua Tagovailoa's Head Injury Prompts Changes To NFL Concussion Protocols - WSJ
NFL under fire over its concussion protocol following Tua Tagovailoa's back- to-back game hits - ABC News
Dolphins' Tua Tagovailoa shows NFL concussion policy remains a mess
N.F.L.'s Concussion Protocol Under Scrutiny After Tagovailoa Injuries - The New York Times
NFL's concussion protocol again under scrutiny after Tua Tagovailoa is hit hard again
NFLPA terminates unaffiliated neurotrauma consultant involved in Tua Tagovailoa's concussion evaluation during Week 3 game vs. Bills
NFL faces intense scrutiny over concussion protocols
NFLPA to investigate the NFL, Miami Dolphins' handling of Tua Tagovailoa concussion evaluation – NBC Sports Chicago
Dave Hyde: Dolphins followed concussion protocol and medical advice about Tua Tagovailoa, but is system 'broken' as some think? – The Denver Post
NFL Week 4 takeaways: Inside the NFLPA investigation and concussion protocol - Sports Illustrated