David J Handelsman is Professor of Reproductive Endocrinology and Andrology, University of Sydney, inaugural Professor/Director, ANZAC Research Institute and the founding Head, Andrology Department, Concord Hospital. As a career clinician scientist in Andrology (male reproductive health, medicine and biology) he became Australia’s first Professor of Andrology (1996) and established the only hospital Andrology Department (1999). His research into androgen physiology, pharmacology and toxicology spans basic, clinical and public health domains including genetic models of androgen action; steroid mass spectrometry; sports endocrinology and anti-doping science; clinical androgen pharmacology; androgens and male ageing and the use, misuse and abuse of androgens. A Life Member of Endocrine Society of Australia, Society for Reproductive Biology and Fellow, Australian Academy of Health and Medical Sciences, he has served on the Australian Drug Evaluation Committee, WHO Human Reproduction Program and World Anti-Doping Agency and has provided expert testimony to the Federal Court of Australia and anti-doping tribunals including the Court for Arbitration in Sport for WADA, IAAF, IOC and ASADA.