DT | (6-1, 315, 5.15) | USC
By Pro Football WeeklyNotes: Lettered as a backup defensive tackle as a true 18-year-old freshman in 1999 and was in on five stops. Started seven of 10 games (missed one game with a sprained ankle) in 2000 and also was the team's backup long-snapper. Started the first five games in '01 before tearing ligaments in his right knee in Game Five vs. Washington. Had major surgery. Had 20 stops and three tackles for loss in 2000; and 26-5, one sack and his first interception in '01, while generally lining up as a nose tackle. In '02, he had 25-1-1 and blocked a kick.Positives: Is quick off the ball and has good athletic ability when he stays low, as well as good football intelligence. Sees and feels blocks. Good leg strength and use of his hands. Solid vs. the run when he plays low with leverage. Good change of direction, lateral movement and pursuit. Can close on the quarterback. Good athletic ability, effort and toughness. High-energy player who gets a burst upfield. Good tackler who can stack and hold and is thick with a big bubble butt. Two-gap tackle. Can snap.Negatives: Is short and an OK bull rusher. Had major knee surgery to repair a right anterior cruciate ligament tear. Lacks moves as a rusher. Mobility and quickness were big parts of his game, and it is still to be determined if he can regain his quickness and explosiveness.Summary: Because he has had trouble staying healthy, Riley could be drafted in the middle to late rounds as a reserve defensive tackle.* Player biographies are provided by Pro Football Weekly.