The lineup for World Series of Fighting 23 is now complete, as seven preliminary card bouts have been made official.

Set for September 18 from Phoenix, the event features a headline bout between Justin Gaethje and Luis Palomino for the lightweight title.

Added to the preliminary card are bouts featuring Clifford Starks vs. Krasimir Mladenov, Estevan Payan vs. Isaac Vallie-Flagg and Danny Davis, Jr. vs. Matthew Frincu.

Below is the complete lineup:

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: Phoenix Jones vs. Roberto Yong

Lightweight: Brian Foster vs. LaRue Burley

PRELIMINARY CARD (Online/6:45 p.m. ET)

Middleweight: Vagab Vagabov vs. Kelvin Tiller

Middleweight: Clifford Starks vs. Krasimir Mladenov

Lightweight: Estevan Payan vs. Isaac Vallie-Flagg

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