4-4 Defense
4-4 Defensive Alignment - The graphic below demonstrates a typical 4-4 alignment.
The 4-4 consists of four defensive linemen, four linebackers, two corner backs, and
one safety.
The 4-4 consists of four defensive linemen, four linebackers, two corner backs, and
one safety.
Gap Responsibilities - The graphic below details the 4-4 gap responsibilities of the
defensive linemen and the linebackers.
defensive linemen and the linebackers.
Weak side C Gap – Weak side Defensive End
Weak side B Gap – Rover
Weak side A Gap – Weak side Defensive Tackle
Strong side A Gap – MIKE Linebacker
Strong side B Gap – Strong side Defensive Tackle
Strong side C Gap – BUCK
Strong side D Gap – Strong side Defensive End and SAM
Gap Alignment vs. Assignment – Linebackers have gap alignments as described
above, however linebackers do not maintain the exact same gap discipline that a
defensive lineman does. For instance, the MIKE linebacker in the above graphic is
aligned on the strong side A Gap, although this gap is his primary responsibility
and he must be there to make the play, he must also develop the ability and the
discipline to read what the offense is trying to do and be prepared to attack any gap
where a window appears. The ROVER, MIKE, BUCKand SAM are all looking for
“The Window,” the same window the running back is looking for, that the offensive
line is trying to open. A linebacker cannot simply run to the same gap at the snap
every time and expect to be successful with any regularity. A disciplined linebacker
reads the offense first, finds the window and then attacks. If a savvy offensive coach
were to see a linebacker firing to the same gap every time he would simply lay a
trap for him and run the ball right past him. This is where the gap discipline differs
from lineman to linebacker. The offensive lineman has his gap responsibility and
his discipline to maintain control of that specific gap whereas the linebacker has to
be disciplined to not only cover his gap but also decipher the play and be ready to
attack anywhere.
Weak side B Gap – Rover
Weak side A Gap – Weak side Defensive Tackle
Strong side A Gap – MIKE Linebacker
Strong side B Gap – Strong side Defensive Tackle
Strong side C Gap – BUCK
Strong side D Gap – Strong side Defensive End and SAM
Gap Alignment vs. Assignment – Linebackers have gap alignments as described
above, however linebackers do not maintain the exact same gap discipline that a
defensive lineman does. For instance, the MIKE linebacker in the above graphic is
aligned on the strong side A Gap, although this gap is his primary responsibility
and he must be there to make the play, he must also develop the ability and the
discipline to read what the offense is trying to do and be prepared to attack any gap
where a window appears. The ROVER, MIKE, BUCKand SAM are all looking for
“The Window,” the same window the running back is looking for, that the offensive
line is trying to open. A linebacker cannot simply run to the same gap at the snap
every time and expect to be successful with any regularity. A disciplined linebacker
reads the offense first, finds the window and then attacks. If a savvy offensive coach
were to see a linebacker firing to the same gap every time he would simply lay a
trap for him and run the ball right past him. This is where the gap discipline differs
from lineman to linebacker. The offensive lineman has his gap responsibility and
his discipline to maintain control of that specific gap whereas the linebacker has to
be disciplined to not only cover his gap but also decipher the play and be ready to
attack anywhere.
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