The seven-time Cy Young Award winner pleads not guilty to federal charges that he lied to Congress when he rejected the claims of others who said the former pitcher had used steroids and human growth hormone.More than two years after Roger Clemens told Congress that he had never taken steroids or human growth hormone, the seven-time Cy Young Award winner reaffirmed his denial Monday as he pleaded not guilty in federal court to charges that he lied to a congressional panel about the alleged doping.