Jokes! Retired ref Dermot Gallagher tests out vanishing spray in Central London [Video]

The vanishing spray will tomorrow become a regular feature of the Premier League.

Used at the World Cup in Brazil this summer, the spray was praised by all within the game.

Ex-Premier League referee Dermot Gallagher features in this Unibet advert, testing the spray in Central London.

Watch the funny video below:

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