UFC 138: "Leben vs. Munoz" is all set to pop off tomorrow (Sat., Nov. 5, 2011) from the LG Arena in Birmingham, England.

The event features the very first five round main event non-title fight in the history of the promotion, as Chris Leben attempts to catapult himself to the front of the middleweight line at the expense of Mark Munoz.

Also on tap is a welterweight mash up pitting Thiago Alves vs. Papy Abedi as well as bantamweight brawlers Brad Pickett and Renan Barao going to war.

Check out the photo gallery from today's (Nov. 4) weigh-in event (via CombatLifestyle.com) after the jump. Click here for complete weigh-in results, click here for staredown pics, and click here for staredown videos.