MMA H.E.A.T. brings you the weigh-ins and staredown between UFC Heavyweight Champ Junior Dos Santos and his challenger, former champ Cain Velasquez. The two will square off in the main event at UFC 155, set to take place at the MGM Grand in Las Vegas, Nevada, December 29, 2012. Karyn Bryant has been nominated 2012 MMA Journalist of the Year in the World MMA Awards. Please take a minute to vote for her: http://www.tinyurl.com/voteKB - Thank you! Be sure to visit http://www.MMAHEAT.com for more