46 Defense: (pronounced forty-six defense) a formation of the 4-3 defense (four linemen and three linebackers) in which three defensive backs (the two cornerbacks and the strong safety) crowd the line of scrimmage. The remaining safety, which is the free safety, stays in the backfield. It was invented by Buddy Ryan while with the Chicago Bears and popularized by the Super Bowl XX Champion 1985 Chicago Bears.

 

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46 Defense: (pronounced forty-six defense) a formation of the 4-3 defense (four linemen and three linebackers) in which three defensive backs (the two cornerbacks and the strong safety) crowd the line o . . . View Full Definition

Nickel Defense: When a defense brings in a 5th defensive back to replace a linebacker on the field, increasing its pass coverage.

Prevent Defense: A defensive strategy that utilizes deep zone coverage in order to prevent a big pass play from happening down field, usually at the expense of giving up yards at shorter distances. Often use . . . View Full Definition

Man-To-Man Defense: The defense mandatory in the NBA, where each defensive player is responsible for guarding one opponent.