Auzou Book for anatole bristol's investigations volume 8 red card for luca

As a sports competition approaches, Luca, the best football player in Year 6, keeps making blunders at school. As a result, he ends up being banned from the match by his teacher! However, the boy insists that he is innocent. Anatole decides to trust his friend and investigate. But how can he help Luca when all the evidence seems to be against him?