Meet directors and sponsors can have an impact on athletes' and coaches' careers even if formal doping charges are not brought.

She has not failed a drug test and faces no formal doping charges.

If the result comes back negative, the doping charges will be dropped.

If the B sample tests negative, the athlete is cleared of a doping charge.

He was later, in 1986, banned for a doping charge.

Greene was referring to the six athletes competing under doping charges who have not yet had their hearings.

In 2003 he was cleared of a doping charge.

He was, however, cleared of doping charges.

For example, recent doping charges on Lance Armstrong cost him $30 million in endorsements.

The second test must confirm the findings of the first test for an official doping charge to be filed.