Overview

• Charles Oliveira and short-notice opponent Mateusz Gamrot each weighed 156 pounds, confirming Saturday’s main event at Farmasi Arena in Rio de Janeiro (prelims 4 p.m. ET, main card 7 p.m. ET on ESPN+).
• The heavyweight bout between Valter Walker and Mohammed Usman was canceled when Usman withdrew late and no replacement was secured before the weigh-ins.
• Bantamweight Saimon Oliveira came in at 144 pounds for his fight with Luan Lacerda, missing the non-title limit by eight pounds; reports indicate the matchup is still expected to proceed.
• Gamrot replaced the injured Rafael Fiziev and has said he intends to test Oliveira’s ground game, framing the main event as a clash of wrestling and submission prowess.
• Oliveira, returning to compete in Brazil after more than five years, described a win as a step toward regaining the lightweight title.