And the Olympic gold medalist track star Marion Jones has admitted to using steroids. For years Jones has denied allegations she’s used performance-enhancing drugs. Jones is expected to plead guilty today in a New York court. In a letter to family and friends, Jones apologized and said she had been unknowingly given the drugs by her personal trainer. Jones’ admission could strip her of the five medals she won in 2000 at the Summer Olympics in Sydney, Australia.