Hard-hitting heavyweights Cheick Kongo and Matt Mitrione will hook 'em up in the co-main event of UFC 137: "Penn vs. Diaz," scheduled for this Saturday night (Oct. 29, 2011) at the Mandalay Bay Events Center in Las Vegas, Nevada.

The last time Kongo was in action, he was involved in one of the craziest and most memorable comebacks in Octagon history at UFC on Versus 4. After getting repeatedly rocked by Pat Barry, the French sensation landed a big right hand that stunned "HD" and finished the job with a monster uppercut.

Despite his comeback performance, as well as the fact that this will be fight number 15 inside the Octagon, the Parisian has been pegged as the +110 underdog heading into "Sin City."

That leaves Mitrione as the -140 favorite.

Mitrione also competed the last time UFC invaded the Versus cable network channel and had his way with over-matched heavyweight brawler Christian Morecraft.

In fact, if not for the Kongo comeback, "Meathead" likely would have won himself "Knockout of the Night" honors for his walkaway kayo in the second round.

The win in Pittsburgh was his fifth straight.

Cheick Kongo vs. Matt Mitrione at UFC 137. Who ya' got? For more UFC 137 odds and betting lines check out our fiscal friends Odds Shark by clicking here.