Brazil 2014: Spray for drawing line of wall for free kick has been authorised since 2012
The use of a vanishing spray, which allows referees to draw a white line on the ground to enforce a 9.15 metre distance between the wall and the kicker during a free kick, was authorised by the IFAB (International Football Association Board, the guardian of the laws of the game) at its 126th annual meeting in Surrey (England) on 03/03/2012...