Lines up on the outside of the defensive line. Responsible for the outside pass rush, and stopping the run.

An offensive player who lines up in the offensive backfield and generally is responsible for blocking for the running back and also pass-blocking for the quarterback.

Lines up next to the guards. Responsible for protecting against the outside pass rush, and run blocking.

The team stud.

An offensive player who lines up on or near the line of scrimmage, but split to the outside. His primary job is to catch passes from the quarterback.