UFC 138 Weigh-in Video: Leben vs. Munoz

BIRMINGHAM, England – Chris Leben and Mark Munoz are ready to throw down in the UFC 138 main event on Saturday night, but they already got a little heated at the UFC 138 weigh-ins on Friday. The two went nose-to-nose before UFC president Dana White and others had to step in and keep them separated.

Plus, welterweight fighter Thiago Alves once again had a little trouble on the scales.

Watch the exclusive UFC 138 weigh-in video from MMAWeekly.com…