[1] He attended Winder-Barrow High School where he played the positions of wide receiver and cornerback for the Bulldoggs football team.
[2] In his senior season, Sullivan made All-Region 8-AAAAA Second-team for his performances at cornerback and running back.
[1] Just under six feet tall and weighing 180 lbs, Sullivan also played varsity basketball as a point guard and team captain.
[8] He failed to make the Eagles' 53-man roster out of training camp, but was subsequently signed to the team's practice squad on September 2.
[9] Sullivan was promoted to the active roster on October 25, 2018, after defensive end Derek Barnett was placed on injured reserve.
[10] Sullivan made his NFL debut on October 28, 2018, against the Jacksonville Jaguars, playing on special teams.
In the first half, Sullivan had stripped a Colt of the football and taken it across the goal line but that play was ruled as not a fumble.