Referees at this year's Club World Cup will be equipped with vanishing spray to mark out the 10-yard line players must stand behind for an opposition free-kick, FIFA have confirmed.
The spray, produced by Argentinian company 9.15 Fair Play Limit, allows officials to spray the substance on the pitch to signal the distance players must stand when creating a defensive wall.
It was originally trialled in Argentina five years ago, before being successfully implemented at the 2011 Copa America.
In March last year, the International Football Association Board approved the use of the spray across any federation or league, paving the way for its use in Morocco this December.
FIFA's head of refereeing, Massimo Busacca, said a lot of referees found the tool useful, adding: "The spray has a clear preventive effect. This distance was always respected, so no yellow card for not respecting the distance had to be given throughout the two tournaments so far."
The wall moving forward once the official's back is turned is a common occurrence in football matches all over the world, but the introduction of this new technology is a stepping stone to eradicating the problem - with discussions as to whether it can be implemented in other FIFA tournaments set to begin after the event in north Africa.
Busacca told the organisation's official website: "We will review the results and discuss if the spray will be used also in future competitions."
It's unlikely to feature at next summer's World Cup despite being popular in South America, with FIFA's rules making panel set to discuss it in Zurich in March.
The Club World Cup will this year be contested by Champions League winners Bayern Munich, Brazilian side Atletico Mineiro, China's Guangzhou Evergrande, Egyptian outfit Al-Ahly, Australian team Auckland City and Mexico's Monterrey, as well as hosts Raja Casablanca.
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