His face-to-face lobbying efforts not quite complete, Roger Clemens was back on Capitol Hill on Friday with two lawyers and a PR person in tow. The seven-time Cy Young Award winner began a second day of informal sit-downs with members of the congressional committee looking into the Mitchell Report on drug use in baseball - and, more specifically, looking into Clemens' denials of allegations by his former personal trainer, Brian McNamee, about injections of steroids and human growth hormone.