The Léonard decides to work for the sport. He invents in particular jogging and tennis (only problem the ball is made of metal)... He meets Roland Garros and Wimbledon. Discover in this album many new inventions of the most fabulous of geniuses, which will undoubtedly revolutionize civilization. Only invention that struggles to prove its worth: a machine to awaken the disciples. And it's not for lack of trying!