Watch the Official UFC 179 Weigh-in Streaming Live on Friday at 2 PM ET

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Watch the official UFC 179: Aldo vs. Mendes 2 weigh-in streaming live from Rio de Janeiro, Brazil, on Friday at 2 p.m. ET / 11 a.m. PT. Featherweight champion Jose Aldo puts his title on the line in a rematch against top contender Chad Mendes in the main event.

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