PFL star Sergio Pettis added to what’s been a wild year of spinning back elbow knockouts on Friday in Dubai. Friday’s PFL headliner between Usman Nurmagomedov and Paul Hughes for the PFL lightweight championship was the main attraction, but it was Sergio Pettis who stole the show on the undercard. Anthony Pettis loses his mind online after Sergio Pettis’s horrific spinning back elbow knockoutAfter a back-and-forth opening round between Pettis and Magomedov, Pettis countered Magomedov in Round 2 with a brutal spinning back elbow that knocked his rival out cold. ANOTHER SPINNING ELBOW KO FOR SERGIO PETTIS 😱#RoadToDubai | LIVE NOW | Streaming on the ESPN App pic.twitter.com/AhNzNI5gj2 — PFL (@PFLMMA) October 3, 2025After Sergio’s knockout, his former UFC champion brother Anthony went wild on X. The Pettis knockout loss was the first time he’d been knocked out since 2015.