Ultimate Fighting Championship (UFC) held its weigh-in extravaganza earlier this evening (Dec. 28, 2012) from the MGM Grand in Las Vegas, Nevada, in advance of tomorrow night's UFC 155: "Dos Santos vs. Velasquez 2" event live on pay-per-view (PPV)

Find out how much everyone tipped the scale at in our weigh in results post by clicking here.

UFC 155 will feature a heavyweight championship showdown to close the year, as Junior dos Santos and Cain Velasquez are going to party like it's 1999. "Cigano" blasted "Brown Pride" in just 64 seconds in their first meeting but no one, including both fighters, thinks this one will look anything like that.

Other action on the card will see Jim Miller take on Joe Lauzon in the night's co-main event in an important lightweight battle, Alan Belcher attempt to climb closer up the middleweight ladder to an eventual title shot against Yushin Okami, and Chris Leben's return against Derek Brunson.

To check out a complete photo gallery from UFC 155 from the talented Esther Lin click here.

Remember, too, that MMAmania.com will provide LIVE round-by-round, blow-by-blow coverage of the UFC 155 main card action on fight night (Sat., Dec. 29, 2012), which is slated to air at 10 p.m. ET on pay-per-view (PPV). The latest quick updates of the live action will begin to flow earlier than that around 6:30 p.m. ET with the "Prelims" bouts on Facebook and FX Channel.

For all the latest "Dos Santos vs. Velasquez 2" news and notes click here.