Dukes was named to the Shrine Bowl as a senior after a season where he had 89 tackles with 23 tackles for loss and 12 sacks. As a junior, Dukes recorded 50 tackles, 10 for a loss, six sacks, two fumble recoveries, including one for a touchdown, and one forced fumble. As a sophomore, he had more than 70 tackles and 12 sacks. Dukes also averaged 17 points and nine rebounds for the Manning basketball team last season.