Watch The UFC 155: Dos Santos vs. Velasquez II Weigh-ins Live @ 7pm EST

Watch the official weigh-ins for this weekends UFC 155: Dos Santos vs. Velasquez II event kicks off today at 7pm EST (4pm PST) live from the MGM Grand Garden Arena in Las Vegas, Nevada. The live pay-per-view event will pit UFC heavyweight champ Junior dos Santos against former title holder Cain Velasquez in the main event of UFC 155, which goes down tomorrow evening in the same venue.