wingback

A back positioned on offense behind or outside of an end.

Either of two defensive players, especially in soccer, positioned to the side of the field and playing just behind the midfielders in order to support the offense.

A player who doubles as a defender when their team is defending, and a winger when they are attacking.

wingback chair, wing chair

(American football) the position of the offensive back who lines up behind or outside the end

(football) the person who plays wingback