Article Photos: Pettitte agrees he may have misunderstood Clemens 7/11

  FILE - this Feb. 13, 2008, file photo shows former New York Yankees baseball pitcher Roger Clemens testifying before the House Oversight, and Government Reform Committee on Capitol Hill in Washington. The trial of former star pitcher Roger Clemens on charges that he lied to Congress when he denied taking steroids and human growth hormone is just the latest example of a big name from baseball becoming embroiled in scandal. (AP Photo/Pablo Martinez Monsivais, File)