Oliveira wins in Rio as Aldo retires and prelim medical concerns

Charles Oliveira returned to the winner’s circle with a second-round submission and Brazil’s Jose Aldo formally retired at UFC Rio on October 11, while the event’s preliminaries produced a separate medical controversy that drew scrutiny from fans and regulators. The Fight Night card at Farmasi Arena in Rio de Janeiro featured 12 bouts across eight weight classes and an announced attendance of 16,297.

Oliveira, the former lightweight champion, finished Mateusz Gamrot with a rear-naked choke at 2:48 of the second round to close the main card. The victory was Oliveira’s 24th in the UFC and extended his records for most finishes and most submission wins in promotion history. Gamrot suffered the first stoppage loss of his career. After the win, Oliveira called for a BMF title rematch with Max Holloway, saying during his postfight interview, “Hey, Hunter Campbell, Charles Oliveira and Max Holloway, BMF, let’s make that happen.” Holloway responded that he was interested, and UFC president Dana White said the matchup would be “incredible” to see, signaling promotional interest in a high-profile rematch.

Four fighters earned $50,000 Performance of the Night bonuses: Oliveira, Vitor...