Translate the following English sentence to French:
"My third point serves as a warning against the yawning gap which can arise between top sport and smaller sports associations on the one hand and professional and amateur sport on the other."
Troisièmement : un avertissement relatif aux différences majeures qui risquent de se poser entre le sport de haut niveau et les plus petites associations sportives d' une part et le sport professionnel et amateur d' autre part.