Where there is a potential for a shot on goal to occur from a direct free kick, often the defending side will erect a "wall" of players standing side by side as a barrier to the shot. The number of players composing the wall varies based on distance and strategy. The wall is typically positioned to screen the area of the near side post, while the far side post is normally referred to as the primary responsibility of the goalkeeper, which is why the goalkeeper is often positioned further towards the far side post than the near side post after forming a wall.
