WASHINGTON (AP) - There's a report saying Roger Clemens' DNA has been linked to blood in syringes his former personal trainer says he used on the pitcher.
The Washington Post cites two unidentified sources saying the DNA results are only preliminary. It also says Clemens has voluntarily given a DNA sample to federal authorities.
It's still unclear if those syringes ever contained steroids or human growth hormone. A lawyer for Clemens calls it fabricated evidence.
Brian McNamee has told federal agents as well as a House committee he injected Clemens with steroids and HGH more than a dozen times from 1998-2001.
The test results could prove important to an investigation into whether Clemens lied under oath to Congress when he denied using steroids or HGH.
Prosecutors have asked a federal grand jury in Washington to decide whether to indict the 7-time Cy Young Award winner.