The highly anticipated UFC 326 main card is set to take place in just five weeks, and it's shaping up to be a thrilling event. But here's where it gets intriguing: the co-main event is still a mystery. The main card features a highly anticipated 'BMF' title fight between Max Holloway and Charles Oliveira, a middleweight battle between Caio Borralho and Reinier de Ridder, a bantamweight contest between Rob Font and Raul Rosas Jr., and a middleweight slugfest between Gregory Rodrigues and Bruno Ferreira. Initially, there was speculation that the Borralho-de Ridder bout would serve as the co-main event, but the UFC has yet to announce a replacement. The promotion did lose a bout on the card earlier when Brian Ortega revealed he was out of his scheduled lightweight fight with Renato Moicano. UFC 326 is set to take place on March 7 at T-Mobile Arena in Las Vegas, and fans are eagerly awaiting the announcement of the co-main event.