Source: Lab testing evidence in case against Roger Clemens

WASHINGTON -- A person close to the Roger Clemens case tells The Associated Press that the country's leading doping lab is testing syringes and vials the baseball star's former personal trainer gave federal investigators to determine whether the items contain traces of performance-enhancing drugs.

The person spoke on condition of anonymity because the investigation is still ongoing into whether Clemens lied under oath to Congress last year when he denied using steroids or human growth hormone.

According to the person close to the case, the world-renowned UCLA Olympic doping lab has in hand the physical evidence the trainer, Brian McNamee, turned over to federal prosecutors in early 2008 that his side says will link Clemens to drug use.