Roger Goodell: NFL to change concussion protocol
Broncos: NFL, players change their ways in dealing with concussions – The Denver Post
NFL Players Association, NFL amend concussion protocol after Tagovalioa's injury
Raiders' Garoppolo is in concussion protocol, putting his start for Chargers game in question
NFL, NFLPA agree to parameters of updated concussion protocols
NFL owners unlikely to vote on Dan Snyder, roughing calls
The NFL concussion protocol cannot save football
How does the NFL's concussion protocol work? Explaining the five-step process for return to play
NFL says player concussions decreased 24 percent last season
NFLPA renews call for natural grass to help prevent injuries after Rodgers gets hurt
As new NFL concussion protocols stall, Rams' David Edwards returns - Los Angeles Times
NFL concussions strategy for Super Bowl 52 includes a change