FIFA WORLD CUP 2014: Now you see it, Now you don`t. The Vanishing spray debuted.

A free kick from certain point of the field needs officialy  a distance of 10 yards, between the kicker and the human wall where oposing players are supposed to stand  and not trying to crept closer to the free kick taker in a effort to disrupt the kick. Well that did not exactly  was respected just like that and openents players broke the rules sometimes.

The solution to stop this problem  has arrived. The referee can spray a temporary line on the field where the human wall of players should stand.

The  referee sprays a temporary line on the field during Thursday's opening World Cup match between Brazil and Croatia.

The Vanishing Spray is the brainchild of Argentinian journalist and entrepreneur Pablo Silva.

"It started seven or eight years ago when I was playing in a championship played amongst former school members,"Silva told Reuters.

"In the 88th minute, we were losing 1-0 and won a free kick on the edge of the area. When I took the kick, the wall (of opposing players) was three meters away. The referee didn't book anyone and didn't do anything. We lost the game and driving home later, with a mixture of anger and bitterness, I thought that we must invent something to stop this."

The spray is called 9:15 Fairplay, or 10 yards expressed in meters. It's already been used in games the past several years by Major League Soccer.

"We find the vanishing spray to be extremely useful and very effective in ensuring the defenders are 10 yards from the ball," said Paul Rejer, training and development manager for the Professional Referees Organization, which supplies officials for MLS.

"The spray makes it clear where the ball is to be placed and where the defenders have to stand. Since the use of spray we experience very few problems in achieving the ... (minimum) distance."

Rejer said the spray has been welcomed by officials and is no hassle for them to carry during games.

This  game solution in order to have FIFA a better fairplay joins the GOAL LINE technology also implemented in this World Cup 2014.