John Madden talks 'Madden' foootball, video games as teaching
The History of John Madden EA Video Game and the 'Madden Curse'
Madden 15 - ESPN revisits Madden covers through the years - ESPN
The Madden Curse: Where Gaming, Football, and Superstition Collide
The Madden Curse: myth or reality? - AS USA
Madden NFL cover was just part of John Madden's influence on EA's
GameSpy: Madden Curse Strikes Again - Page 1
Does 'Madden' cover curse still exist? A look back at 25 years of
Next up for the Madden curse? Richard Sherman or Cam Newton