The first fighter is scheduled to step to the scale shortly after 7 p.m. ET from Phoenix.
In the main event, Justin Gaethje defends his lightweight title against Luis Palomino, while Teddy Holder and David Branch square off to crown a champion in the light heavyweight division.
Check out the current lineup, along with the video for the weigh-ins below:
MAIN CARD (NBC Sports Network/10 p.m. ET)
WSOF Lightweight Championship
Justin Gaethje (c) vs. Luis Palomino
Inaugural WSOF Light Heavyweight Championship
David Branch vs. Teddy Holder
Bantamweight: Timur Valiev vs. Tito Jones
Catchweight: Ben “Phoenix Jones” Fodor vs. Roberto Yong
Lightweight: Brian Foster vs. LaRue Burley
PRELIMINARY CARD (Online/6:45 p.m. ET)
Middleweight: Vagab Vagabov vs. Brian Grinnell
Middleweight: Clifford Starks vs. Krasimir Mladenov
Lightweight: Estevan Payan vs. Kamuela Kirk
Welterweight: Matthew Frincu vs. Danny Davis, Jr.
Bantamweight: Andres Ponce vs. David Nuzzo
Bantamweight: Randy Steinke vs. Joey Miolla
Lightweight: Benny Madrid vs. Jeff Fletcher