Clemens' ex-trainer could end up a hero for telling the hard truth, or go down as one of the strangest frauds of all-time. McNamee, who has said he injected Clemens with steroid and human growth hormone at least 16 times from 1998 to 2001, has serious credibility issues. He was a suspect, but never charged, in an alleged date rape in Florida in 2001, he has admitted to supplying baseball players with steroids, and in a recent taped conversation with Clemens that the major leaguer's legal team played for the media, he comes across as desperate — though nothing on the tape proved that he was making his story up. The fact that he had saved seven-year-old vials, syringes, gauze pads allegedly tied to Clemens struck many observers as creepy, and it could also come also back to haunt him. Even if traces of drugs, and Clemens' DNA, are found in the medical waste, Clemens' lawyers can question the chain of custody of that evidence; it will never unequivocally prove that Clemens used. On the other hand, one of the players McNamee fingered in the Mitchell report, Andy Pettitte, has confirmed McNamee's allegations; another, Chuck Knoblauch, hasn't issued any denials. Plus, Pettitte, according to some already disputed press reports, may have corroborated some of McNamee's claims against Clemens. Still, if McNamee isn't convincing in front of Congress, he could face more legal trouble than he already faces; his agreement with federal prosecutors stipulated that he not lie to investigators when presenting information for the Mitchell Report, and he could, like Clemens, face a perjury investigation.
— by Sean Gregory