Barcelona star Lionel Messi is set to be in London tomorrow for a bounce game with some lucky kids!

Tomorrow, adidas will be bringing World Player of the Year Messi to London, reports The Sun.

Once he is here he will be taking part in a massive city-wide game of 'Catch Him if You Can'.

Over the course of the day, adidas will be sending him on a series of 'challenges of speed' set throughout the city, to see just how fast he really is.

Today, The Sun can reveal that after touching down in London, Messi is going to be taken by helicopter to a football pitch somewhere in the city.

The kids don't know it yet, but he will be taking part in a live 11-a-side game where he will be using speed and skill as the world's fastest-ever sub to turn the game!

Messi will then be sent to another destination for his second challenge of speed.