1.   Any player found guilty of using banned substances faces the prospect of a lengthy suspension.

2.   ...a banned substance.

3.   Also, some high-profile track and field athletes who tested positive for banned substances have gone unpunished by their own countries.

4.   Another problem is that many banned substances lurk within over-the-counter medications or nutritional supplements that are incompletely labeled.

5.   Armstrong vehemently denies using any banned substance, but he has raised suspicions by repeatedly visiting an Italian doctor who is under investigation for allegedly providing EPO.

6.   As a synthetic form of testosterone, those organizations put andro on the list of banned substance simply because they knew it had muscle-building properties.

7.   At the Olympics, if an athlete takes a banned substance, that athlete can be suspended, even if the substance was ingested inadvertently.

8.   Athletes who know when they will be tested usually have time to clear the banned substances from their systems.

9.   Bagach had his gold medal stripped away when he tested positive for the stimulant ephedrine, a banned substance.

10.   Bowers maintained, though, that testing is only one way of curtailing the use of banned substances.