NFL's concussion protocol modified after Tagovailoa review
NFL to change concussion protocol in wake of Tua Tagovailoa
NFL & NFLPA Agree to Modify Concussion Protocols After Miami
NFL to tweak concussion protocol after frightening injuries
Dolphins deny Tua Tagovailoa played with concussion as NFL
Investigation: Dolphins followed protocol in Tua concussion check
NFL, players' union agree to modify concussion protocol after
NFL Players Association fires consultant who evaluated Tua
NFL, NFLPA update concussion protocols, here's what the 'Tua rule
NFL concussion protocol: National Football League, players union