Plunge (American football)

A "dive" (or "plunge" or "buck", also called a line plunge or line buck) is a type of play in American football in which the ball carrier (usually a fullback or a halfback) attempts to rush through one of the gaps in the offensive line. This hole can be either between center and guard or between guard and tackle. It may be run with or without a lead blocker, though when run with a lead blocker it may be called a "lead dive". It is often, though not always, used in short-yardage situations, specifically at the goal line. Fullbacks, or larger, stronger running backs less prone to fumbling, are favorable because this play values strength over speed. It is distinct from both an end run and an off-tackle run.