I'm pretty sure he blamed his positive test for adderall on adderall in his water, not anythig to do with steroids
The nfl doesn't give out information about the substance. Everybody just says it's adderall because it seems less severe. I would bet my house that almost everybody that got busted didn't really test positive for adderall. I mean what are the odds? The nfl has a serious steroid problem.
But I don't want to hijack this thread and turn it into a nfl drug policy discussion.