Watch former UFC stars Eddie Alvarez and Jeremy Stephens duke it out in bare-knuckle boxing, tonight on DAZN.

Cro Cop lost more than half of his fights in the UFC, falling way short of expectations. Melvin Guillard had the power to become a UFC champion. Guillard's UFC career was full of inconsistencies.

Joe Lauzon and Melvin Guillard, to name a few. He's also squared off against many of the sport's other luminaries - names like Khabib Nurmagomedov, Justin Gaethje and Nate Diaz - during his tenure.