MMA Fighting’s Mike Heck confirmed the booking Thursday following an initial report by Cageside Press.
Sabatello (10-1) will aim to build off his successful Bellator debut over former UFC contender Brett Johns. The 28-year-old has won five consecutive fights including a decision win over Taylor Moore in 2020 on a Dana White’s Contender Series event.
Campbell (21-13), likewise, hopes to continue his hot start in Bellator after submitting Henry Corrales via second-round rear-naked choke in May. Campbell has won six of his last seven fights and holds a notable win over current UFC bantamweight Kris Moutinho from 2019.
Bellator 264 takes places on August 13 at the Mohegan Sun Arena in Uncasville, Conn.