Playbooks

Breakdown

Cover 3 Sky is a zone coverage call out of the Nickel 3-3 Dbl Mug set that drops three deep defenders into thirds of the field while the strong safety rolls down into the box as the "sky" run and flat defender. Both outside corners bail into deep thirds, the two inside linebackers sink into intermediate hook/curl zones, and the underneath defenders squeeze the short middle to take away crossers and shallow drags. This is a zone beater designed to defend both the run and short to intermediate passing game, with the primary read progression flowing from the deep middle third to the flat and curl zones as the quarterback works his route concept.

Defensive Reads

Watch the offensive formation for three receiver flood concepts to one side, since that is the primary way to attack the deep third coverage in Cover 3 Sky. Key the sky safety's run fit versus outside zone and stretch runs, since his fast trigger downhill is what makes this call effective against the ground game. Post-snap, user the deep middle defender to rob any deep in-cuts or dig routes that try to split the seams between the thirds. If the quarterback stares down the flat defender, jump the route with your user controlled underneath zone defender since Cover 3 Sky is designed to funnel throws into that area. This shell struggles against quick slants and stick concepts that attack the seams between the curl and hook zones, so be ready to sink your linebackers with urgency at the snap.

Usage Tips

Use this call on early downs when you expect a balanced run/pass look, since the sky safety gives you an extra run defender near the box without sacrificing deep coverage integrity.

Pre-snap, identify if the offense is stacking receivers to one side, since Cover 3 Sky can be vulnerable to flood concepts that overload one deep third with three receivers.

Hot route your curl/flat defenders to widen if you see a lot of quick out or flat routes designed to sit underneath the sky rotation.

Pair this play with Cover 3 Match or Cover 1 Hole from the same 3-3 Dbl Mug set to disguise your shell, since all three plays share similar pre-snap alignment but rotate coverage differently.

Show blitz with the Mug linebackers pre-snap then bail into this zone drop to bait the quarterback into throwing into a defender he didn't account for.