UFC Vegas 123 preview: Moicano and Nolan headline a Halloween card where the main event odds have already flipped, and Julian Erosa fights for the last time

UFC Vegas 123 will take place on Saturday night at the Meta APEX, headlined by a five-round lightweight bout between Renato Moicano and Tom Nolan. Betting lines have already shifted, with Moicano taking over as the favorite after Nolan originally opened ahead on the odds board. Moicano enters the bout planning to test free agency once his UFC contract ends, while Nolan makes his first UFC headlining appearance.

The 12-fight card also features a retirement bout for 37-year-old featherweight Julian Erosa, who will face Jeong Yeong Lee in his final professional fight. Other main card matchups include Randy Brown facing short-notice replacement Jacobe Smith at welterweight, Ode Osbourne against Cody Durden, and an all-Santos women's bantamweight bout between Yana Santos and Luana Santos.