NEW YORK (AP) — Former running back Ricky Williams says he went through "at least 500" drug tests during his 11-year NFL career.

The 1998 Heisman Trophy winner at Texas and first-round draft pick by New Orleans in '99 tells Sports Illustrated in a film to be released on SI.com on Wednesday that he "might have the world record for most times drug tested."

Williams, who also played for Miami and Baltimore, sat out the 2006 season while suspended by the league for violating the substance abuse policy.

Ricky's wife, Kristin, outlines in the film how lax NFL testing standards were, including when a tester left the samples at the Williamses' house to go get stickers for identifying them.

In the film, entitled "Ricky Williams Takes the High Road," Williams also discusses the prevalence of marijuana use in the NFL today, and its potential as a medicinal tool.

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