NFL concussion protocol a hit for players' safety – The Denver Post
Tua Tagovailoa's latest concussion to be investigated by NFL, NFLPA
Trump Said Efforts to Prevent Concussions Ruin NFL: the Science of CTE
The NFL PA issues a statement that they would like the NFL to make changes to the concussion policy
Goodell: NFL to make 'change or two' to concussion protocol
NFL's concussion protocol modified after Tagovailoa review
NFL and players union agree to updated concussion protocol, Sports
NFL has hit on something with 'Julian Edelman Rule' - The Boston Globe
As new NFL concussion protocols stall, Rams' David Edwards returns - Los Angeles Times
NFL under fire over its concussion protocol following Tua Tagovailoa's back-to-back game hits - ABC News
NFL under fire over its concussion protocol following Tua Tagovailoa's back-to-back game hits – 101 ESPN