N.F.L. (National Football League)
Tua Tagovailoa's Head Injury Prompts Changes To NFL Concussion Protocols - WSJ
Consultant who cleared Dolphins' Tagovailoa to play after head blow is fired
Doctor Who Examined Dolphins' Tua Tagovailoa Is Dismissed - The New York Times
Tua Tagovailoa Archives – Five Reasons Sports Network
NFL under fire over its concussion protocol following Tua Tagovailoa's back-to-back game hits - ABC News
NFL to tweak concussion protocol after frightening injuries
Concussion expert: Misuse may mean brain damage for Tua Tagovailoa
Tua Tagovailoa Is Proof That the NFL Is Failing Its Players