Biggest Winners, Loser From UFC Vegas 121

UFC Vegas 121went down last night (Sat., Sept. 26, 2026) inside Meta Apex in Las Vegas, Nevada, which saw Raul Rosas Jr. knockout Raoni Barcelos in the fifth and final round in what was a brutal, back-and-forth war. That said, the end of the fight was quite troubling and confusing for all to see (see it again here). In the co-main event of the evening, Aileen Perez secured on of her biggest wins to date by defeating top-ranked contender, Norma Dumont, via unanimous decision.