Not only did Dern (16-5 MMA, 11-5 UFC) pull off her first stoppage since April 2021, she avenged a prior loss to Ribas (12-7 MMA, 7-6 UFC) and solidified herself as a potential title challenger. Dern submitted Ribas with an armbar at 4:56 of Round 3 at the UFC Apex in Las Vegas.

UFC strawweight Mackenzie Dern avenged a loss from five years ago to Amanda Ribas on Saturday, as she submitted Ribas via armbar with just four seconds remaining in the third round. A submission specialist,

Mackenzie Dern is building the momentum that has eluded her. For the first time in four years, Dern has consecutive wins. The decorated Brazilian Jiu-Jitsu star weaponized her grappling to hand Amanda Ribas her first submission loss at UFC Fight Night on Saturday.