Raoni Barcelos Gets His First UFC Main Event at 39 vs Raul Rosas Jr.

Raoni Barcelos has spent eight years and 15 fights grinding through the UFC's deepest weight class. On Saturday night at Meta APEX, the 39-year-old Brazilian finally gets his name at the top of the poster, headlining a five-round bantamweight bout against Mexico's Raul Rosas Jr. The two sit side by side in the rankings — Rosas 12th, Barcelos 13th — which tells you exactly how tight this one projects to be.

Barcelos rides a five-fight win streak into his first main event, the best stretch of his UFC tenure. That run started in February 2024 when he submitted Cristian Quinonez in the third round to snap a slide that had reached four losses in five. Since then he's stacked up wins over prospect Payton Talbott, ex-champ Cody Garbrandt, plus Ricky Simon and Montel Jackson — a résumé that finally forced the promotion to give him the marquee slot.

From Fast Start to Free Fall to Redemption

It hasn't been a straight line. Barcelos opened his UFC career 5-0 after arriving in 2018, then hit a wall. A June 2021 loss to Timur Valiev kicked off a rough patch that also saw him drop fights to Victor Henry, Umar Nurmagomedov and Kyler Phillips. Garbrandt, one of the names he's since beaten, is now 15-8 and unranked after being stopped in the first by Adrian Yañez — a reminder of how quickly things turn at 135.

Barcelos said the call to fight Rosas made him happy on its own; learning it would headline felt like a movie flashing through his head — every struggle, every setback that got him here. He described Rosas as a tough, talented athlete and predicted the fans come out the real winners because both men will be sharp.

The jump to 25 minutes didn't force much of a rebuild. Barcelos said his conditioning already runs long, so the adjustment was more tactical than physical — staying cerebral, controlling rounds, managing pace as the fight stretches. Where he thinks he holds the edge is experience: he's been knocked out and done the knocking out, won and lost, and figures that mileage carries weight in a matchup this even.

Don't expect him to sit back, though. Barcelos said he plans to come in aggressive and hunt an early finish, while accepting the fight could hit the mat and turn into a wrestling and jiu-jitsu affair. Beat a rising talent like Rosas and it's the biggest win of his career — and, as he put it, a message to the rest of the division that a new chapter is starting.