[img]http://d.yimg.com/a/p/ap/20100830/capt.07f7978bfc764229a6e1f866d0070b6e-07f7978bfc764229a6e1f866d0070b6e-0.jpg?x=117&y=130&q=85&sig=SS6KPfEte6W_RaQBWqkhZw--[/img]AP - Seven-time Cy Young winner Roger Clemens pleaded not guilty Monday to charges of lying to Congress about whether he used steroids or human growth hormone.