Adrian Peterson says he is ahead of schedule in his rehabilitation from a torn anterior cruciate ligament. He plans to begin running again on Feb. 28 and is very optimistic about playing sooner than initially expected. "Right now my goal is to be back by the first, the regular-season opener," Peterson told "The Dan Patrick Show" on Tuesday. "That's my goal." Peterson underwent ACL surgery on Dec. 30 -- a little more than eight months before the start of the 2012 season.