Decathlon is providing interesting insights into what the game of football may look like in 21 years, with most spectators following matches in smaller stadia or through an immersive experience over the internet. For example, contact lenses on the eyes of a player could allow future spectators to see what he sees and senses. There may be no need for a referee, and it should be possible to find out if a player is faking pain through the use of sensors. The players themselves will be able to make the right moves at the right time, using multifunctional contact lenses to decide whether they should pass the ball or shoot. These and other futuristic ideas are revealed in an imaginary letter that would be written in 2024 by an 18-year-old fan, Franck, to his grandfather and posted on Decathlon’s international website.