The act of tackling the quarterback behind the line of scrimmage represents a significant defensive play. A particularly extreme instance of this occurs when the quarterback is brought down exceptionally far behind the original line of scrimmage. For example, a play where the quarterback is tackled 25 or more yards behind where the play started would qualify as an extraordinary loss.
Such plays are notable for their rarity and the substantial setback they inflict on the offensive team. These plays often swing momentum in favor of the defense, creating difficult field position for the opposing offense and increasing the likelihood of a turnover or punt. Historically, accounts of these plays are often recalled due to the unusual circumstances and significant yardage lost.
