On Friday, Nov. 20, World Series of Fighting will hold its 25th event from the Comerica Theatre in Phoenix.

The event features a throwback to the early days of MMA as the promotion holds an eight-man, one-night lightweight tournament that will reward the winner with a title shot against current champion Justin Gaethje.

The field is littered with veterans of the UFC, Bellator MMA and other recognizable promotions. Former title challengers Luis Palomino and Richard Patishnock square off in one match-up, Brian Foster meets Joao Zeferino, Joe Condon collides with Mike Ricci and MMA pioneer Jorge Patino takes on Islam Mamedov in the final part of the bracket.

Combat Press sat down with WSOF President Ray Sefo to preview the event. Click above for the full interview.