The defense team in the Roger Clemens perjury trial rested its case on Monday.

Clemens, on trial for allegedly lying about taking performance-enhancing drugs during testimony to Congress in 2008, did not take the stand.

According to the Washington Post, the prosecution began calling rebuttal witnesses Monday and closing arguments in the nine-week trial could begin Tuesday before the case goes to the jury.

In February 2008, Clemens testified before the House Committee on Oversight that he never took performance-enhancing drugs. However, Brian McNamee, Clemens' ex-trainer, testified to the contrary and said that he injected the seven-time Cy Young Award winner with steroids and human growth hormone from 1998-2001.

The Congressional hearings came several months after the release of the Mitchell Report on the use of performance-enhancing drugs in baseball, in which McNamee claimed he injected Clemens with steroids and HGH.

Clemens, who retired in 2007, has previously stated the only thing McNamee ever injected into him was a pain-killer called lidocaine and the vitamin B-12.