Single-wing formation

A classic single-wing alignment, with the center (50) shotgun-snapping the ball either to the left halfback/"tailback" (40) or to the fullback (30). Quarterback (20) is called "blocking back" in this formation, right halfback (10) is the "wingback," frequently a pass receiver.

In American and Canadian football, a single-wing formation was a precursor to the modern shotgun formation. The term usually connotes formations in which the snap is tossed rather than handed. Formations with one wingback and a handed snap are commonly called "wing T" or "winged T".

Created by Glenn "Pop" Warner, the single wing was deemed superior to the T formation in its ability to get an extra eligible receiver downfield.