46 Defense

The 46 defense is an American football defensive formation. The formation comprises four down linemen, three linebackers, and four defensive backs. The 46 defense was originally developed and popularized by Chicago Bears defensive coordinator Buddy Ryan, who later became head coach of the Philadelphia Eagles and Arizona Cardinals. Today the scheme is currently used on a regular basis by the New York Jets head coach and defensive coordinator Rex Ryan, son of Buddy Ryan.

The name "46" originally came from the jersey number of Doug Plank, who was a starting safety for the Bears when Ryan developed the defense, and typically played in that formation as a surrogate linebacker.

Read more about 46 Defense:  Description, Lining Up

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