The MMA community reacted to Mackenzie Dern becoming the first to submit Amanda Ribas in their UFC Vegas 101 rematch.

UFC strawweight Mackenzie Dern defeated Amanda Ribas via armbar with just four seconds remaining in the third round in the headliner of UFC's first event of 2025 on Saturday in Las Vegas.

The world’s leading MMA promotion recently concluded their first event of the year, UFC Vegas 101. The event lived up to the hype and had a little bit of everything. In the main event, a true showcase for grappling enthusiasts was on display as Mackenzie Dern out-grappled Amanda Ribas and secured a victory.