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Trench Dictionary · D-Line

Stack and shed

The full run-defense sequence: take on the blocker (stack), control him, then disengage (shed) to make the tackle.

Also called: stack and shed, two gap

Stack and shed is how a defensive lineman plays the run. First you stack the blocker — take him on with your hands inside and your pads low, stand him up, and hold your gap instead of getting moved. You read the play through him. Then you shed — violently disengage by ripping, pulling, or pressing the blocker off and getting to the ball-carrier. The whole sequence depends on hand placement and leverage: get inside his frame, lock him out at strike distance so you can feel where the play is going, and don't shed until you know where to go.

Learn the technique: Run Defense: Stack & Shed

Related trench terms

StackD-Line
To take on the blocker and stand him up at the line instead of getting displaced.
ShedD-Line
To disengage from a block to make the tackle.
2-gapD-Line
A defensive technique where the lineman is responsible for both gaps on either side of the blocker he lines up over.
ReadD-Line
To diagnose the offensive lineman's intent — run vs. pass, direction, and scheme — as the play unfolds.
Get-offD-Line
The first step from the stance. The single biggest defensive-line weapon.

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