goalpost \goalpost\, goal post \goal post\, n. (Sport)
One of two posts supporting a crossbar which forms a goal[3],
especially in American football; also, in football the entire
structure consisting of the posts, crossbar, and two
uprights. To score a goal by kicking the football, the ball
must pass above the crossbar and between the vertical lines
formed by the uprights.
[PJC]