UFC 137 Fight Card: Penn vs. Diaz

Has the UFC ever seen this much drama before a card? Between Nick Diaz making every press event a circus and Georges St. Pierre hurting his knee, it's certainly been an eventful last six weeks. Where does it stand now? Well, there's no title fight on top but it's hard to argue with the allure of the new main event. And it's still one of the deeper PPV cards of the year even without GSP and Carlos Condit. Hatsu Hioki will make his UFC debut, and two heavyweight battles are likely to be crowd pleasers too. Here's the whole card (the preliminary card is after the jump):

Oct 29th, live on Pay-per-view from Las Vegas, NV:

B.J. Penn (16-7-2) vs. Nick Diaz (25-7, 1 NC) 

Cheick Kongo (16-6-2) vs. Matt Mitrione (5-0)

Mirko Filipovic (27-9-2) vs. Roy Nelson (15-6)

Hatsu Hioki (24-4-2) vs. George Roop (12-7-1)

Brad Tavares (7-1) vs. Dustin Jacoby (6-0)