Less than two months before the summer Olympics the U.S. Track and Field (search) team is facing a crisis over alleged steroid use.

The U.S. anti-doping agency has notified four athletes, including 100-meter world record holder Tim Montgomery (search), that they could be barred from the games for using banned substances.

Their names surfaced in connection with the federal prosecution of Bay Area Laboratory Co-Operative (search), the company at the center of a widening drug scandal. But now that probe has caught up with the world's fastest woman.

A reputation was tainted when gold medalist Marion Jones' (search) name appeared in BALCO documents. Although the anti-doping agency hasn't publicly condemned her, some think she could be next, causing her to come out swinging.

Jones called the anti-doping agency a kangaroo court, conducting proceedings in secret. The agency says any suggestion that their proceedings are unfair is a distortion of the truth and that their actions are grounded in federal law and are safeguarded to ensure a fair hearing.

The track and field Olympic trials start July 9 in Sacramento, Calif., and the U.S. team will be announced two weeks later.

Go to the video box at the top of this story to watch a report by Fox News' Adam Housley.