Sibley (5’09”, 173 lbs.) spent the last four seasons in the Vikings uniform at Portland State University where he played 42 games. The Decatur, GA native, accumulated an impressive total of 147 defensive tackles, six of which were for losses. Sibley left his mark on the Vikings defensive unit during his stay, as he made 21 knockdowns on top of two forced fumbles and three interceptions, including one returned for a major. Sibley displayed great athletic abilities throughout his collegiate career, he who also played as kick returner the last two seasons at Portland State.