Roger Clemens' trial on charges that he lied to Congress and obstructed an investigation into his alleged use of performance-enhancing drugs has been delayed three months, a judge ruled on Wednesday, according to a report by Reuters. Clemens' trial is now slated for July 6, 2011.

Clemens' lawyer, Rusty Hardin, said the defense needs more time to go over tens of thousands of pages of documents turned over by prosecutors and that they needed to retain an expert witness to testify on the seven-time Cy Young Award winner's behalf, Reuters added.

Clemens' defense team had been pushing to start the trial -- originally slated for April 5 -- at some point in September, while prosecutors recommended June. But U.S. District Judge Reggie Walton said he had other cases pending, so he set July 6 for the start of jury selection, according to Reuters, which wrote that the trial is expected to last about six weeks.

While under oath in February 2008, Clemens denied accusations by former trainer Brian McNamee that he used steroids and human-growth hormone to the House of Representatives' Committee on Oversight and Government Reform. Then, in August, Clemens pleaded not guilty in federal court to three counts of making false statements, two counts of perjury and one count of obstructing the U.S. Congress.