John Madden left indelible impact on generations of football fans
John Madden on Madden: The early days of his video game, how he watches the NFL now and more - ESPN
2023 Kansas City Chiefs Media Guide by Kansas City Chiefs - Issuu
Why John Madden's return to Madden NFL cover was the 'perfect way' to honor him - The Athletic
John Madden's Impact is Evident in His Legacy of NFL Games
Chiefs' Andy Reid paid respects to late John Madden at Monday memorial - Arrowhead Pride
John Madden Tributes from NFL Legends
Thanks, coach': John Madden returns to cover of his own video game
John Madden Changed How We Consume Football - The New York Times