PFL 5 2023 Regular Season featured a number of fast, furious finishes among female featherweights and male heavyweights.
In the heavyweight main event, 2022 PFL heavyweight champion Ante Delija battled Ultimate Fighting Championship veteran Maurice Greene. This was actually Delija's first and only appearance this season, as he was injured and unable to fight in a scheduled April fight. However, he had won 4 in a row and 6 of 7 heading into the Greene fight, including two impressive knockouts of Mattheus Scheffel and one of Renan Ferreira.