One of the craziest spinning back fists KO you will ever see The Former @bellatormma Bantamweight World Champion Sergio Pettis makes his PFL debut in Chicago on June 27th against Raufeon Stots [ #PFLWorldTournament | Friday , June 27th | 📺 10:30 PM EST | ESPN ] #pflmma #mma #combatsports #sports #2025 #sergiopettis #knockout #ko #spinningbackfist #striking