The NFL and players union agreed to an updated concussion protocol
Goodell: NFL to make 'change or two' to concussion protocol
NFL commish Roger Goodell in his own Stupor Bowl talking about
Super Bowl 2016: NFL Dodges Concussion Questions
NFL commissioner Roger Goodell tackles diversity, concussions
The Year the N.F.L. Bounced Back - The New York Times
Angry ex-Giants players wonder if 'racist policy' kept them from
The NFL's crusade to mask the dangers of head trauma looks worse
NFL Commissioner Goodell tackles diversity, concussions