The 35-year old Gomi (34-9, 1 no-contest) last fought in March 2013 in Saitama, Japan, when he dropped a split decision to Diego Sanchez in a bout most observers felt Gomi won. Prior to that, he won back-to-back bouts over Mac Danzig and Eiji Mitsuoka.
Vallie-Flagg (14-4-1), a Jackson's MMA fighter, has fought professionally since 2003. He's 1-1 in the UFC, with his most recent bout a unanimous decision loss to Elias Silverio in January.
Originally, Vallie-Flagg was slated to meet Danny Castillo. According to the UFC.com report, Castillo will remain on the card against an opponent to be determined.