Federal investigators involved in the Roger Clemens perjury probe have found performance-enhancing drugs on syringes, vials and gauze pads provided by his former trainer, The New York Times reported.

The revelations could help the case of ex-trainer Brian McNamee, who has told federal agents, baseball investigator George Mitchell and a House of Representatives committee that he injected Clemens more than a dozen times with steroids and the human growth hormone from 1998-2001.

Clemens has been accused of lying to Congress last year, when he said under oath that he never used steroids or H.G.H.

Clemens’ attorney, Rusty Hardin, said he wasn’t shocked by the findings.

"Duh," Hardin told the Times. "Do you really think McNamee was going to fabricate this stuff and not make sure there were substances on there? The fact is Roger never used steroids or H.G.H."

McNamee's lawyers said last year they turned over needles used to inject Clemens — needles that were contained in a beer can McNamee says was removed from the trash at the pitcher's New York apartment in 2001 — and gauze used to wipe blood off Clemens after a shot.

At the time, Clemens' camp called it "manufactured" evidence, while the trainer's side said the items were thrown in a box by McNamee and kept for years in case he needed to "protect himself" somewhere down the line.

Click here to read more on this story from The New York Times.

The Associated Press contributed to this report.