BIOGRAPHY: Three-year starter who totaled 61/11.5/9 as a senior after 59/10.5/6.5 during his junior campaign.

POSITIVES: Hard-working overachiever who was productive on the college level. Intelligent player who quickly diagnoses the action and chases hard to make positive plays. Keeps his hands low to the ground to get leverage on opponents, smooth changing direction, and makes plays down the line of scrimmage. Can bend off the edge as a pass-rusher and plays with good balance.

NEGATIVES: Lacks bulk and engulfed by blockers. Does not show great speed in pursuit.

ANALYSIS: Mattison is a former team captain who leads by example on the field. He possesses poor size/speed numbers, which limits his upside, yet his intangibles could help him find a spot on a roster.

PROJECTION: Middle Seventh Round