The Positions in a Football Secondary
Types of Defensive Coverage in Football
What Makes a Good Defensive Lineman in Football

Types of Football Defenses

3-4 front

The 3-4 defense uses only three defensive linemen, with the one in the middle called the nose tackle (N), and four linebackers (LB), with the other two defensive linemen (DE) usually consisting of one superior pass-rusher and a rugged run-defender.

The 3-4 defense is ideally suited to defending multiple offensive formations. Also, the nose tackle can neutralize the center’s pass-blocking attempts by constantly shoving his strong head and shoulders to the ground or moving the center sideways, thus negating his effectiveness as a blocker.

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