UFC 323 is a defining night for Merab Dvalishvili's legacy. Petr Yan is the only thing that stands between the UFC bantamweight champion and a series of achievements that will guarantee Dvalishvili goes down as one of the greatest of all time.

UFC 323 is live from Las Vegas, Nevada, tonight with the Main Event featuring reigning champ Merab Dvalishvili facing off against Petr Yan.

Two championships and a highly anticipated rematch are set for Saturday night, as fans get set for a thrilling night of action at UFC 323. The main event will see Merab Dvalishvili put his Bantamweight title on the line against Petr Yan.

LAS VEGAS – MMA Junkie is on scene and reporting from Friday's UFC on ESPN 73 (ESPN2, ESPN+) official weigh-ins, and you can watch a live stream of the event beginning at noon ET (9 a.m. PT). The weigh-ins take place at UFC Apex, the same venue that hosts the final UFC event of the year.