The throw-in is taken from the point where the ball crossed the touch-line, either on the ground or in the air, though typically a referee will tolerate small discrepancies between the position where the ball crossed the touch-line and the position of the throw-in. The throw-in is taken by the opponents of the player who last touched the ball before it crossed the touch-line. Opposing players may not approach closer than to the point on the touch-line from which the throw-in is to be taken.