Fantasy World Cup- Vanishing Spray!

At virtually every World Cup of the modern era, new devices are used by officials to overcome much of the cheating (gaining advantage) that takes place in a game.

For the Brazil World Cup referees will have a new weapon in their arsenal "Vanishing Spray!"

• When a free-kick is awarded near the penalty area, the referee sprays a circle round the ball and paces out 10 yards from where it has been placed

• He sprays a line on the pitch to mark the position where the defensive wall should stand

• The line disappears from the pitch within a minute
  

Is this a good idea! Especially as it usually takes over a minute to organise a defensive wall? Thoughts please via email, twitter and Facebook.

For more info and evidence that Howard Webb is infallible click here