Why do they call it Madden? - Quora
From the Archives: Raiders head coach John Madden stepped down in 1979 - The San Diego Union-Tribune
How did John Madden become one of the biggest names in video game history?
Remembering John Madden, the video game character - Los Angeles Times
John Madden's death draws outpouring of love and memories from sports world – Times Herald Online
Madden NFL 23 Review - A Short Gain To Start A New Drive - Game Informer
Madden video game influenced 5 NFL players
John Madden Loved Santa Maria Tri-Tip - The Santa Barbara Independent
John Madden Loved Santa Maria Tri-Tip - The Santa Barbara Independent
Madden NFL 23 - Xbox One, Xbox One