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Quick Reference
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Breakdown
Blitz Loop 3 is a five-man pressure look out of the Nickel Big Nickel 4-2-5 personnel that shows Mug alignment at the second level before the snap. The interior line runs a stunt (the looping red arrows) with the defensive tackle looping wide off the edge rusher's path while the linebackers fill the vacated interior gaps, and the two Mug backers plus an overloaded edge crash through the box on the blitz. Behind the pressure, this is a Cover 3 shell: both cornerbacks sink into deep thirds, the safety drops down the middle third, and the underneath defenders (the SAM and a shallow zone dropper) rob quick in-cuts and crossers. The primary read is the quarterback's eyes: get the stunt to win up front first, and if the ball holds, the deep third defenders should be reading any vertical shot down the seams or sideline before the underneath zone droppers close on shallow crossing routes.
Defensive Reads
Pre-snap, check for the Mug look at both inside linebacker spots and confirm the corners are aligned outside with a deep safety showing single high, since that tips the Cover 3 rotation underneath the blitz. Post-snap, key the offensive tackle's first step: if he steps down inside for the loop, your edge pressure has a two-way go and should win outside quickly before the quarterback can climb the pocket. Watch the shallow zone dropper in the middle of the field for any hesitation, since quick game beaters like slants and stick routes will test that defender's initial read before the crossers develop. This look struggles against play-action rollouts and quick RPO reads because the stunt takes an extra beat to develop, so if the offense is selling run fakes with bootleg action, expect the quarterback to escape contain before the loop finishes. Cover 3 beaters like deep overs and skinny posts that attack the seam behind the underneath droppers but in front of the rotating safety are the biggest threat, so the deep third defenders must widen and get depth immediately at the snap.
Usage Tips
Disguise this look by showing double Mug pre-snap and delay the safety rotation as long as possible so the quarterback cannot identify Cover 3 until after the snap.
Use this on early downs or second-and-medium when offenses are more likely to call quick game or shallow crossers, since the underneath zone droppers are sitting on those routes.
If the offense audibles to max protect or empty, consider bailing to Cover 3 Sky or Cover 3 Match from the same set instead, since the extra blocker can pick up the stunt and neutralize the interior pressure.
Pair this call with Blitz Loop Sim 3 and Blitz Loop 0 in sequence so the offensive line cannot key on the same interior stunt shape every snap.
Spy the middle of the field with your user if you see trips or bunch formations, since the looping defensive tackle needs a clean lane and slot receivers can chip late to slow the loop.
