NFL to honor late John Madden by starting annual Thanksgiving tradition
Madden NFL Covers Through the Years - Sports Illustrated
We have lost a legend in John Madden - Newsday
John Madden through the years
OTL: The Franchise - ESPN
Why John Madden's return to Madden NFL cover was the 'perfect way' to honor him - The Athletic
The Evolution of John Madden NFL Football
How John Madden Became the Face of a Video Game Empire - The New York Times
The history of the Madden Curse
On This Date in Raiders History: John Madden inducted into the Hall of Fame