Career
Early career
Sullivan signed with the UFC in the winter of 2013. Ultimate Fighting Championship
Sullivan made his promotional debut against fellow newcomer Mike Rhodes on January 25, 2014 at UFC on Fox 10. In his next fight, Sullivan faced Igor Araújo on September 13, 2014 at UFC Fight Night 51.
Sullivan was expected to face Kenny Robertson on April 18, 2015 at UFC on Fox 15.
However, Robertson pulled out of the bout citing injury and was replaced by Tim Means. He lost the back and forth fight via submission in the third round.
Sullivan was expected to face Marcio Alexandre Junior. on July 12, 2015 at The Ultimate Fighter 21 Finale. However, Alexandre pulled out of the fight during the week leading up to the event citing a rib injury and was replaced by promotional newcomer Dominic Waters.
Sullivan faced Alexander Yakovlev at UFC on Fox 18 on January 30, 2016.
He lost the fight via knockout in the first round. Cage Fury Fighting Championships
CFFC Welterweight Championship (One time).