Datuk Dr. M. Jegathesan is the Deputy President of the Olympic Council of Malaysia (OCM) since 2002 and has been in the forefront of the fight against doping since he became a member of the Sports Medicine Committee of the OCM in the 80’s. He is the Chairman of the Medical Committee of OCM, the SEA Games Federation. Since 2004, he is the Honorary Medical Adviser of the Commonwealth Games Federation (CGF), the Chairman of the Medical Commission of the Olympic Council of Asia (OCA) since 2007 and a member of the IOC Medical Commission since 2007.

Being a medical doctor himself and an Olympian in the 1960, 1964 and 1968 Olympic Games and the gold medalists in the 100m in Track and Field in the 1962 and the 100m, 200m and 4 X 100m Relay in the 1966 Asian Games, Datuk Dr. M. Jegathesan has been very conscious of the need to fight against doping in sport. His two prong strategies in the fight against doping are testing and education. He has diligently carried out his duties and responsibilities as a volunteer in sports medicine, contributing his time, experience and knowledge to the OCM, OCA, CGF and the IOC for over twenty years.