The heavyweights were quick to step up in light of the loss of Georges St-Pierre from the UFC 137 card. Now with the headliners pushing their bout up more, the event has been changed to UFC 137: “Penn vs Diaz” in the headline at the Oct. 29 pay-per-view from Mandalay Bay.

Hopefully the turn of events does not sour you on the card as these heavyweights are deserving of the co-main spotlight. Matt “Meathead” Mitrione a former pro NFL player, known for his antics on the highest viewed season of “The Ultimate Fighter” has been on a tear in the UFC, still undefeated at 5-0 with four finishes.

Kongo, known for his chiseled exterior and recent comeback KO over Pat Barry in the UFC Live headline June 26, the man is a five year vet in the Octagon. If you missed out on Kongo’s recent highlight reel or any for that matter, make sure to catch the Countdown to UFC 137 premiering next Tue. on FSN and Thur. on Versus HD to see why this is must see event still.