Football Defensive Back Plays
Football's Defense Team: The Linebackers
Tricks and Techniques of a Football Secondary

Types of Football Defenses

Flex

The flex defense is a 4-3 alignment, but it flexes (moves back) two defensive linemen (DT and DE) off the line of scrimmage by 2 or 3 yards. These two offset linemen read the blocking combinations of the offense and attempt to make the tackle (or the sack) while their teammates try to break down the offense’s blocking patterns.

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