John Madden Was America's Greatest Football Teacher - The Ringer
Remembering John Madden, the video game character - Los Angeles Times
Madden NFL cover was just part of John Madden's influence on EA's video game series - The Washington Post
How did John Madden become one of the biggest names in video game history?
John Madden dies at 85: Timeline of NFL legend's career from player to Hall of Fame coach, broadcaster
Why was the Madden video game series named after John Madden? - Quora
John Madden, former Hall of Fame NFL coach and broadcaster, dies at 85 - ABC News
How John Madden Became the Face of a Video Game Empire - The New York Times
John Madden's Net Worth and Inspiring Story
25 years of Madden, the video game that changed football forever - The Verge
NFL legend John Madden dies at 85
How John Madden Became the Face of a Video Game Empire - The New York Times
How did John Madden become one of the biggest names in video game history?
John Madden dead: NFL icon behind Madden video game series dies at 85
Look: 'Madden' game from 1990 sets new auction price record at $480,000