[alnorth]

A story on cnn uses slightly different wording from the original report which might be a clue. The story on cnn said the first test showed high levels of testosterone, triggering the second test, which showed a synthetic substance. (The ESPN report said synthetic testosterone) That may imply rather than taking synthetic testosterone (which would make him guilty as hell), maybe he took something else, which as a side-effect led to higher natural testosterone.

Assuming that is the case, if it is a substance known to lead to higher natural testosterone, he's still guilty unless it was a medically necessary prescription. If it is a substance not known to lead to higher testosterone, and we are only now discovering that it does do that, then he might get out of it and this substance could be added to the banned list.

That is all wild speculation in an effort to make sense of Rosenthal's cryptic source given the report, it might just be lazy editing by CNN.