A women’s strawweight bout headlines the fight UFC event of 2025 at the UFC Apex in Las Vegas on Saturday.  Sixth ranked  Mackenzie Dern (14-5) takes on eighth ranked  Amanda Ribas (13-5) in a rematch.   The two first fought UFC Fight Night 161 in October 2019.  Ribas handed Dern her first career loss.  Six years removed from their first meeting, Ribas accepted the rematch for the opportunity to get closer to a title fight.   “This fight is really important for me and for her because we already fought against  Virna [Jandiroba] .