The Ultimate Fighting Championship on Saturday heads back to the UFC Apex in Las Vegas for a second straight week, and this time around, it essentially does so with a one-fight card. That one fight comes in the UFC on ESPN 53 main event, where two former strawweights look to make an impact up a weight class, as ex-champion Rose Namajunas seeks her first win at 125 pounds against Amanda Ribas. There are some interesting matchups beyond that but nothing with particularly immediate stakes. Former top middleweight prospect Edmen Shahbazyan tries to right the ship against A.