Former NFL Head Coach Buddy Ryan Dead

(AP Photo/Bill Kostroun, File)

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Retired NFL Coach Buddy Ryan has passed away.

FOX's Jared Max has more:

Buddy Ryan coached in the NFL for 35 seasons. Seven years a "head" coach between the Philadelphia Eagles and Arizona Cardinals, Buddy Ryan became a national sports figure in the mid 1980's as defensive coordinator for the Chicago Bears.

He introduced the "46" defense that helped the 1985 Bears post a 15-1 record and then a 46-10 blowout of the New England Patriots in Super Bowl 20, a victory that ended with Ryan carried off the field on the shoulders of his defensive stars.

Buddy Ryan's twin sons, Rex and Rob both coach the Buffalo Bills. 

Jared Max, FOX News.

Follow FOX's Jared Max on Twitter: @Jared_Max