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October 1, 2016

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Burt Watson and UFC president Dana White hold up a towel after Francisco Rivera dropped his underwear trying to make weight during weigh ins for UFC 156 Friday, Feb. 1, 2013. Neither Rivera nor challenger initially made weight

Sam Morris / Las Vegas Sun

Burt Watson and UFC president Dana White hold up a towel after Francisco Rivera dropped his underwear trying to make weight during weigh ins for UFC 156 Friday, Feb. 1, 2013. Neither Rivera nor challenger initially made weight