It has been 40 years since John Madden coached the Oakland Raiders to their first Super Bowl title and six years since he was in the booth for his final Super Bowl broadcast. Meanwhile, the video game that bears his name just keeps on growing in popularity. In fact, a younger generation may know Madden more for that endeavor than for his excellent NFL coaching and broadcasting careers. As Super Bowl 51 draws nearer, here's a look at one of the most iconic figures in professional football.