About: 4–4 defense

In American football, the 4–4 defense is a defensive alignment consisting of four down linemen and four linebackers. Originally seen as a passing defense against the spread, modern versions of the 4-4 are attacking defenses stocked with multiple blitz packages that can easily be concealed and altered. The modern defense is based on speed, athleticism and intelligence rather than on size and strength. Versatility is key because players may have to change roles from one play to the next. A top priority of the 4–4 defense is stopping the run by keeping eight men close to the line of scrimmage. This also makes it difficult for the offense to identify where the pressure comes from when the defense blitzes.