Legendary defensive mastermind Buddy Ryan, 82, has died according to multiple media reports.
Ryan won two Super Bowls as a coach and is perhaps best known as the architect of the dominant Chicago Bears' "46" defensive scheme that was revolutionized in the mid-1980s and earned the Bears their last title in Super Bowl XX.
Ryan coached 35 years in the NFL — and was head coach of both the Philadelphia Eagles and Arizona Cardinals — and passed on his knowledge to many current coaches, including sons Rex and Rob, the head coach and defensive assistant with the Buffalo Bills.