Stephen Dank

Stephen Dank (born c. 1963) is an Australian biochemist who worked as a sports scientist at several professional sports club. He is known for his key role in two major sports drug cheating scandals, the Essendon Football Club supplements saga and the Cronulla-Sutherland Sharks supplements saga, where he injected players with illegal substances to improve their performance.

He is known for his unorthodox treatment and diagnostic methods, including using calf blood and profiling players' DNA. Des Hasler described Dank as 'a great analytical thinker', in particular highlighting his contributions in the area of GPS application, statistical science, and altitude simulation training. In light of his unorthodox treatment methods, in November 2016 Dank was given a life-long ban from association with the Australian Football League. On 28 November 2016, the Australian Sports Anti-Doping Authority (ASADA), (known as Sport Integrity Australia since July 1 2020), officially acknowledged the decision of the AFL Appeal Board

He worked with National Rugby League clubs the Manly Sea Eagles and Cronulla Sharks and Australian rules football clubs, Essendon Football Club and the Gold Coast Suns.