Roger Clemens' agent released an 18,000-word statistical report Monday to refute allegations that the pitcher's career rebounded around the time period he was accused of using performance-enhancing drugs.

''Clemens' longevity was due to his ability to adjust his style of pitching as he got older, incorporating his very effective split-finger fastball to offset the decrease in the speed of his regular fastball caused by aging,'' said the report, created by Randy Hendricks and two associates at his firm.