The UFC canceled a lightweight bout between Alexander Hernandez and Michael Johnson hours before UFC 324 at T-Mobile Arena. The promotion pulled the fight after it was flagged for suspicious betting activity, a decision confirmed by UFC CEO Dana White. No specific details on the betting irregularities were immediately provided.

This marks the third public federal investigation into suspicious wagering around a UFC event. The move comes less than three months after a November 2025 bout between Isaac Dulgarian and Yadier del Valle raised similar concerns, despite alerts from integrity monitors. The UFC did not cancel that fight, which led to Dulgarian's release.

White stated the promotion is now acting decisively to avoid a repeat of past controversies. The UFC previously worked with the FBI on an investigation following the Dulgarian incident and a 2023 case involving former fighter James Krause. Saturday's cancellation signals a stricter policy on fight integrity.