Upback

In American football, the upback (also known as the punt protector or personal protector) is a blocking back who lines up approximately 1-3 yards behind the line of scrimmage in punting situations.

Because the punter plays so far back, the upback frequently makes the line calls and calls for the snap to be received by the punter. Their primary role is to act as the last line of defense for the punter. Upbacks may occasionally receive the snap instead of the punter on fake punts. Upbacks receiving the snap normally run the ball, but they may throw it.

References

Positions in American football and Canadian football
Offense			Defense			Special teams
Linemen	Guard, Tackle, Center		Linemen	Tackle, End		Kicking players	Placekicker, Punter, Kickoff specialist
Quarterback			Linebackers			Snapping	Long snapper, Holder
Backs	Halfback (Tailback), Fullback, H-back		Backs	Cornerback, Safety, Halfback		Returning	Punt returner, Kick returner, Jammer
Receivers	Wide receiver, Tight end, Slotback			Nickelback, Dimeback		Tackling	Gunner, Upback
Formations (List) — Nomenclature