is a Sports Physician (MD) and Exercise Physiologist (PhD). He has worked with professional soccer and cycling teams, as well as professional athletes for two decades. He has been a member of the Medical and Anti Doping Commission at the International Associations of Athletics federations (IAAF) from 2004 to 2015. He still has a clinical activity at the Monaco Institute of Sports Medicine and Surgery (IM2S). Stéphane is also the Director of the Health and Science Department at the IAAF. His research interests have been on Exercise Immunology, but he is for several years more focusing on Applied Science in Athletics, which includes Endocrinology and physical performances. He has published more than 50 peer-reviewed articles or books.