UFC Fight Night: Rosas Jr. vs. Barcelos, also known as UFC Vegas 121, takes place on Saturday, 26 September 2026, at the Meta Apex in Enterprise, Nevada, part of the Las Vegas Valley. The bantamweight main event pits rising star Raul Rosas Jr. against the experienced Brazilian Raoni Barcelos, with the full card streaming on Paramount+.
The Main Event: Rosas Jr. vs. Barcelos
Raul Rosas Jr. burst onto the UFC scene as one of the youngest fighters ever signed to the promotion, quickly earning a reputation for slick submission grappling and mature composure beyond his years. Now established as a legitimate contender in the bantamweight division, Rosas Jr. faces Raoni Barcelos, a durable veteran with significant UFC experience and a well-rounded skillset. Barcelos has fought consistently at the highest level and presents genuine challenge for any opponent at 135 pounds. The main event doubles as a bantamweight final from the latest season of The Ultimate Fighter.
Key Bouts on the Card
The main card features a women’s strawweight TUF final alongside the bantamweight main event, making this card a showcase for the promotion’s latest crop of developmental talent. Norma Dumont and Ailin Perez meet at bantamweight in a women’s division clash, while Montel Jackson and Ricky Simon renew their rivalry at 135 pounds. Women’s strawweight bouts between Tina Black and Melissa Amaya, and Yazmin Jauregui and Vanessa Demopoulos, round out an unusually female-heavy main card. The light heavyweight division is also represented, with Rodolfo Bellato facing Christian Edwards.
Undercard Action
The preliminary card, starting at 5:00 p.m. ET, features Elves Brener vs. Josiah Harrell at lightweight and a welterweight contest between Mickey Gall and Sedriques Dumas. Bantamweight prospect Rinya Nakamura, the Road to UFC Season 1 winner, faces Brady Hiestand on the undercard in a bout the wider division will be monitoring. Road to UFC alumni and TUF talent fill further spots throughout the prelims.
Venue: Meta Apex, Las Vegas
The Meta Apex in Enterprise, Nevada, is the UFC’s home venue and headquarters for its Fight Night series. Located within the Las Vegas metropolitan area, the intimate arena allows for an intense atmosphere with the crowd close to the octagon. The Apex has hosted hundreds of UFC events and is the standard setting for the promotion’s weekly programming.
How to Watch
UFC Fight Night: Rosas Jr. vs. Barcelos streams on Paramount+ in the United States. Preliminary card action begins at 5:00 p.m. ET on Saturday, 26 September 2026, with the main card at 8:00 p.m. ET. International broadcast varies by region.
Storylines to Watch
Rosas Jr. represents one of the UFC’s most carefully managed young talents, and a convincing win over a veteran like Barcelos would cement his status as a genuine future title threat at bantamweight. The TUF season finales give the event added significance, with two fighters earning UFC contracts in front of a global streaming audience. The women’s main card presence makes this one of the more diverse cards of the autumn calendar.