At 7 years old, Kylian Mbappé scored his first goal. At 16 years old, made his professional football debut. At 19, he helped France win a World Cup. Every year after that brought more fame and success for Mbappé. Learn all about this unstoppable football superstar and how he has changed the game in this enlightening biography that is sure to be a winner with all young sports fanatics. Part of the Sports Illustrated Kids Stars of Sports series.