UFC 313’s co-main pits Justin Gaethje vs. Rafael Fiziev against each other for the second time in their careers. Fiziev is coming in on short notice, replacing Dan Hooker in an attempt to avenge his majority decision loss from a few years ago.

UFC 313 has a main card that begins at 10 p.m. ET (7 p.m. PT) on pay-per-view (via ESPN+ ). The four-fight preliminary card airs on ESPNews and streams on Disney+ at 8 p.m. ET. Three early prelims stream on ESPN+ at 6:30 p.m. ET.

Fiziev (12-3 MMA, 6-3 UFC) runs things back with Gaethje (25-5 MMA, 8-5 UFC) in Saturday’s UFC 313 co-main event at T-Mobile Arena in Las Vegas ( ESPN+ pay-per-view, ESPNews/Disney+, ESPN+). He hasn’t competed since tearing his ACL in a TKO loss to Mateusz Gamrot in September 2023. Fiziev lost their first fight at UFC 286 by majority decision.

UFC 313 will move forward with 10 bouts after losing a pair of preliminary contests on the day of the event. The Las Vegas-based promotion on Saturday announced that both Curtis Blaydes and John Castaneda have withdrawn from their respective fights due to undisclosed illnesses.