Edge rusher, also called an edge defender or simply edge, is a position in gridiron football. The position is used as an alternate term for a pass rushing defensive end or outside linebacker and is sometimes considered its own position entirely.
Players considered to be edge rushers are usually 4âÂÂ3 defensive ends or 3âÂÂ4 outside linebackers. Note that 3âÂÂ4 outside linebackers often act as an extension of the defensive line, in that they will attack the offensive tackles or blocking tight ends on the majority of their snaps under a majority of 3âÂÂ4 schemes, though it is not uncommon to see them drop back and play a more traditional 4âÂÂ3 linebacker role as well.
One reason the word "edge" is used in the term "edge rusher" is that edge often refers to the area outside of offensive tackles, but within a couple of yards of the line of scrimmage. While other positions will rarely be referred to as edge rushers, other than 4âÂÂ3 defensive ends and 3âÂÂ4 outside linebackers.