Rousey (9-0) was booed by fans again during the post-fight interview after the co-main event was quickly stopped by referee Herb Dean, much to the fans' dismay at Mandalay Bay Events Center. McMann, who seemed hurt after the hit to her right side with her back to the fence, is now 7-1.
Rousey, who was a 4-1 favorite, was also booed after her last title defense against Miesha Tate. Rousey refused to shake hands with Tate after the match at UFC 168 in December.
Daniel Cormier (13-0) easily defeated Patrick Cummins (4-1) by TKO at 1:19 of the first round of their light heavyweight co-main event.
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