Ultimate Fighting Championship against the headliner Raul Rosas Jr.
Barcelos faced Rosas Jr. in the main event
UFC Vegas 121 last month. The Brazilian was leading the judges’ scorecards entering the fifth round but was knocked unconscious while struggling against the fence. Rosas Jr. won by technical knockout and Barcelos, 39, was taken to a Level 1 trauma center.
Raoni Barcelos undergoes medical tests after losing consciousness against Raul Rosas Jr. at UFC Vegas 121
Barcelos said he will be tested in Las Vegas to determine what happened. He hopes to continue fighting but has not ruled out retirement.
“Unfortunately, we don’t know what happened,” Barcelos told MMA Fighting. “It was a sudden illness. I got sick and felt like my whole body was really going numb. I don’t remember anything after that. All I remember is (arriving) at the ER, I asked my dad what happened and he tried to explain it as best he could. It was a really unfortunate (situation). I got sick and I still don’t understand Vegas. I had another one on Monday and we’re expecting a good result. The doctor hasn’t released the results yet and everything is kept confidential.
Barcelos (22-6) entered the match on a five-game winning streak. He has competed in the UFC since 2018, compiling an 11-5 promotional record with wins over Said Nurmagomedov, Cody Garbrandt and Payton Talbott.
Raoni’s Barcelos still waiting for a diagnosis after her mysterious health scare: “We don’t know what happened. It was a sudden illness. I got sick and felt like my whole body was really going numb. I don’t remember anything after that.” (🎥 @guicruzzz) https://t.co/dVJzTkkBkl
– MMA Fighting (@MMAFighting)
15 October 2026
