http://www.MMAWeekly.com was on hand in Las Vegas to capture the UFC 146 weigh-ins. UFC heavyweight champion Junior dos Santos puts his belt on the line against former champion Frank Mir in the evening's main event.Both men weighed in on Friday at the MGM Grand Garden Arena, having little trouble marking below the 265-pound heavyweight limit.Check out Junior dos Santos and Frank Mir as they step on the scales and talk to Joe Rogan about their showdown.