Contain
What it is
Keep the ball inside and in front. The contain defender does not allow the ball carrier to cross his outside shoulder.
Why it matters
Contain is an assignment, not a technique - several techniques satisfy it. The contain player must never be reached or hooked, and on pass must not allow the quarterback to escape outside the pocket. Losing contain is the single most common cause of an explosive perimeter run.
Also called
Programs call this force or box. The Coach answers to any of them.
Watch it run
This one is in the simulator. The read is measured off the simulation as it plays — nothing about the outcome is scripted.
Zone read — the end takes the QBOn film
2 reps of this in public all-22, each reviewed by a coach before it was labelled. The link opens at the play.
- Counter-examplelost contain3:48–4:09
The edge rusher works upfield and the quarterback crosses his outside shoulder to escape — that is lost contain.
Watch the rep →Labelled by coach-review@eliteedge (model-assisted: qwen2.5vl-cdx:7b@dgx-spark).
- Counter-examplelost contain1:08–1:43
The back gets outside the defense near the sideline — nobody kept him inside and in front.
Watch the rep →Labelled by coach-review@eliteedge (model-assisted: qwen2.5vl-cdx:7b@dgx-spark).
Related
This entry is authored, not generated. It is one of 205 in the index that the AI-ssistant Coach retrieves from, and that Film Study tags clips against.