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\t\t\t\t\t\t\t\t\tSports Doctor Disputes Glover Teixeira\u2019s Take On Raoni Barcelos\u2019 UFC Vegas 121 Collapse<\/span>\n\t\t\t\t\t\t\t<\/li>\n<\/ol>\n Sports medicine doctor Brian Sutterer, MD, has challenged Glover Teixeira\u2019s description of Raoni Barcelos\u2019 frightening collapse at UFC Vegas 121, warning against framing a loss of consciousness after head trauma as the body protecting an athlete from further punishment. <\/p>\n Barcelos was taken to a Level 1 trauma center after going unconscious in the fifth round of his September 26 main event against Raul Rosas Jr. at the UFC APEX in Las Vegas. Rosas was awarded the stoppage at 1:38 of round five, but the result soon became secondary as medical staff treated Barcelos and he was removed on a stretcher.<\/p>\n Teixeira, who worked Barcelos\u2019 corner, said subsequent testing found swelling in the fighter\u2019s brain and described the incident as a traumatic brain injury. He suggested the swelling may have led Barcelos to black out because his body effectively \u201cshut down\u201d when his determination would not allow him to stop. Sutterer disagreed sharply with that interpretation. <\/p>\n \u201cYea that\u2019s not how it works and is the kind of harmful thinking that is bad for combat sport culture,\u201d he wrote. \u201cYour brain doesn\u2019t \u2018switch off\u2019 as a defense mechanism when it\u2019s taken trauma. It shuts off and fails because of the structural damage actually injuring the brain and making it not work.\u201d He added that reported brain swelling, if confirmed, should be treated with the seriousness it deserves. \u201cIf he truly had swelling in his brain that could have been fatal and should never be misconstrued as some minor \u2018scare\u2019 that gets rebranded as toughness,\u201d Sutterer said. <\/p>\n Yea that\u2019s not how it works and is the kind of harmful thinking that is bad for combat sport culture. <\/p>\n Your brain doesn\u2019t \u201cswitch off\u201d as a defense mechanism when it\u2019s taken trauma. It shuts off and fails because of the structural damage actually injuring the brain and making it\u2026 https:\/\/t.co\/GEafLF7td0<\/p>\n \u2014 Brian Sutterer MD (@BrianSuttererMD) October 2, 2026<\/p>\n The response carries extra weight because Sutterer had cautioned after the fight that a traumatic brain injury or intracranial bleeding had to be considered following a prolonged bout involving repeated head strikes. He made clear at the time that he had not examined Barcelos, did not have access to imaging or records, and was discussing possibilities from public footage rather than offering a diagnosis.<\/p>\n Barcelos and Rosas fought through four competitive rounds, with Barcelos reportedly ahead on all three scorecards entering the final frame. Rosas needed a finish and secured a takedown during the fifth, after which Barcelos went limp. Replays did not provide a conclusive answer as to whether his head or neck struck the fence, whether the fall caused the injury, or whether an issue developed before the takedown. <\/p>\n The immediate UFC update stated that Barcelos was stable, alert and responsive with full movement after a CT scan and comprehensive assessment. He remained under medical supervision after being transported for evaluation. Davi Ramos, Barcelos\u2019 head coach, later said the fighter had regained his senses, could talk and move his limbs. Barcelos\u2019 doctor, Gustavo Medeiros, called it a \u201csudden illness\u201d and said he was lucid and oriented while remaining in hospital for observation.<\/p>\n Early reports from Barcelos\u2019 team indicated that stroke and heart attack had been ruled out, although his coach also said the cause had not yet been fully explained while further examinations continued. That uncertainty is central to Sutterer\u2019s point. <\/p>\n A collapse after a demanding MMA fight can require doctors to assess multiple possibilities, including traumatic brain injury, internal bleeding, dehydration, electrolyte disruption, heat-related illness, cardiac concerns, or injury from the fall itself. But no public medical record has yet laid out Barcelos\u2019 complete diagnosis, imaging findings, treatment plan, or return-to-fight timetable.<\/p>\nBrian Sutterer MD Pushes Back On Glover Teixeira\u2019s Raoni Barcelos Explanation After UFC Vegas 121 Scare<\/h2>\n