Marion Jones, five time Olympic medalist and holder of 12 of the 20 fastest 100m sprints for women has returned a positive drug test. Her 'A' sample tested positive for EPO. If the 'B' sample also tests positive she will likely be banned for 2 years.
Jones been connected with a string of drug controversies including having two partners (Hunter - steroids, Montgomery - doping) and a coach (Trevor Graham - association with a dozen drug cheats) banned.
In 1992 Jones was suspended for failing to take a drug test. The suspension was overturned on appeal. In 2004 BALCO founder Victor Conte claimed he had supplied Jones with a banned substance and watched her inject it.