Home 10 Reasons You Have Zero Muscle Growth Adrian Peterson, Leon Hall

Adrian Peterson, Leon Hall

Oklahoma running back Adrian Peterson, left, and Michigan cornerback Leon Hall, run a short sprint during football drills for a photo shoot in Lake Buena Vista, Fla., Wednesday, March 21, 2007. The players earned their first football-related paychecks a month before the draft. (AP Photo/John Raoux)