NEW YORK (CNN)-- Track star Marion Jones pleaded guilty Friday ... to "the clear," which The Washington Post reported Jones admitted using. BALCO has been at the center of a long-running ...

For everything to know about Marion Jones ... for her involvement in the check fraud case and her use of performance-enhancing drugs. Jones got married to shot putter C.J. Hunter in 1998 after ...

Through his platform, the Bay Area Laboratory Co-operative, or BALCO, he supplied an untraceable designer steroid among other drugs to competitors ... athletes such as Marion Jones and Tim Montgomery.