Weight Class: Lightweight A co-main event that is not at all a co-main event, though some have pondered recently if co-main events are even relevant in MMA these days. We would argue that they are, but the success of this one remains to be seen. Gleison Tibau (38-10) takes on Piotr Hallmann (15-2) in a battle of established vet versus rising star that is at least relevant to the lightweight division - though not immediately so. There will be no title fight talk here no matter who wins; what's on the line is both fighter's future potential. The Brazilian Tibau is coming off a win over Pat Healy, but Pat Healy was on a terrible streak and that win isn't the feather in the cap it once might have been. Hallmann, meanwhile, is coming off a win over Yves Edwards. We'll call for the upset here and say Hallmann by TKO in the second.