NFL, players union agree on updated concussion protocol – KIRO 7 News Seattle
Changes coming to NFL concussion protocol a needed step for player safety
Despite concussion concerns, NFL players say game here to stay – Delco Times
NFL players union urges changes to the concussion protocol
NFL faces intense scrutiny over concussion protocols
Tua Tagovailoa Is in the NFL's Concussion Protocols Again - WSJ
N.F.L. Agrees to Settle Concussion Suit for $765 Million - The New York Times
N.F.L. Agrees to Settle Concussion Suit for $765 Million - The New York Times
NFL Return-To-Participation Protocol
Without Updated Tools, NFL Is Still Finding Concussions Too Late - The New York Times
Brain Experts to the NFL After Tua Tagovailoa's Head Injury: What Are You Thinking?