John Madden - Hall of Fame, Las Vegas Raiders
John Madden on Madden: The early days of his video game, how he watches the NFL now and more - ESPN
Coach, broadcaster, esports icon - Inside the legacy of John Madden - ESPN
Oakland Raiders - Wikipedia
John Madden Pro Football Hall of Fame
SBJ Marketing: The impact of John Madden
John Madden, Biography, Football, & Facts
A Football Life John Madden (TV Episode 2017) - IMDb
The final, beautiful goodbye of NFL legend John Madden - ESPN
John Madden, Football Broadcaster and Coach, Dead at 85 - InsideHook
John Madden: Legendary NFL coach and broadcaster has died at age 85
John Madden, legendary Hall of Fame coach and broadcaster, dies at age 85
Will Ferrell Set To Play John Madden in Upcoming Biopic