Watch the UFC 170: Rousey vs. McMann Weigh-ins Live on Friday at 7 P.M. ET

(Courtesy of UFC.com)

The 22 fighters participating on the UFC 170 fight card will officially weigh in on Friday, February 21, at the Mandalay Bay Events Center in Las Vegas.  Watch the fighters step on the scales live at 7 p.m. ET.

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