Weighing in at almost 350 pounds as a junior, the six-foot-five Sullen had problems moving his feet and college coaches didn't come calling.
After a strenuous conditioning workout combined with a strict diet, Sullen now finds himself at 318 pounds. Impressive showings at both Mississippi State and Auburn in recent weeks have also made him a more interesting prospect from schools from all over the South. He says currently he's got a long list of schools wanting to take a closer look.
"Right now I'm hearing from LSU, Georgia Tech, Tennessee, Auburn, Memphis, UAB, Duke, Vanderbilt, Mississippi State, Alabama, Ole Miss, Clemson, Louisville and Florida," Sullen tells Inside The Auburn Tigers. "Those are the main ones. I have offers from Duke, UAB, Memphis, Tulane, South Alabama, Jacksonville State and Georgia Southern."
A two-year starter at Auburn High after transferring in, Sullen has been a strong player for the Tigers despite his lack of quickness off the ball. He says that is something he's been working on this summer and he believes it's beginning to pay off on the field.
"I went to Mississippi State the week before Auburn's camp," Sullen says. "They invited me back to their camp on July 11. Both of the camps were good. I have been doing pretty good. They have been telling me to work on different things. Mostly it's my feet. Also my strength.
"At Auburn I think I did pretty good the second day," he adds. "Fatigue kind of set in, but I don't want to use that as an excuse. It's pretty exciting that Mississippi State wanted me to come back. I'm looking forward to that."
Saying he's always been a fan of the SEC, Sullen notes he doesn't have a favorite, but he's hoping to keep impressing schools enough to add to his offer list. While he's still not where he hopes to be with his weight, with a goal of 310, Sullen has already proven that bigger is definitely not better in his case.