It's quite an ingenious way of making sure neither the free-kick taker or the wall moves after a free is awarded.
The vanishing spray has been one positive development that football has embraced in the last 18 months, but this could be the greatest use of the spray yet.
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Former Brazilian captain and Fenerbache legend was granted a testimonial at Palmeiras over the weekend, where he had three different spells in his early career. The referee decided to get in on the tribute as he spelled out Alex's name on the grass with the spray.
A nice moment in a testimonial.
https://www.youtube.com/watch?v=BxvkOq4nR1o
