Britain's former European sprint champion Dwain Chambers has revealed in his autobiography due out next week he once took a cocktail of more than 300 drugs in one year during which time he passed 10 drug tests.
Chambers' desire to become the world's fastest man was fuelled by drugs virtually every day, and he says at one stage he was practically a walking junkie, and sophisticated drug tests detected nothing.
Chambers was the first high-profile victim of the BALCO scandal when he tested positive in 2003 for the previously undetectable steroid THG, manufactured and distributed by Victor Conte, the founder of the California laboratory.
30 year old Chambers completed a two-year ban in 2006 and returned to competition.
