Watch WSOF 25: 'Lightweight Tournament' undercard fights online | Live WSOF.com free stream video

Friday night is alright for fighting!

World Series of Fighting (WSOF) returns with its one-night "8-Man Lightweight Tournament" TONIGHT (Fri., Nov. 20, 2015) LIVE from Comerica Theatre in Phoenix, Ariz., which will air live on NBC Sports Network.

The featured (non-tournament) main event match this evening is Jason High (18-5) fighting Estevan Payan (16-8, 1 NC). Everything else is up in the air as eight 155-pound competitors look to earn one future title shot, while four tournament reserve fighters hope to move up and fill in.

If your curiosity is piqued about those tournament reserves, you can enjoy the streaming "Prelims" undercard action that includes the quarterfinal tournament round at 9 p.m. ET in the video player below:

Check out the WSOF 25 undercard line up, featuring Lightweight fighters hoping to return later tonight on the televised main card if a tournament participant is unable to continue:

Joseph Barajas vs. Erik Villalobos
Jimmy Scully vs. Roberto Yong
Quarterfinal: Luis Palomino vs. Rich Patishnock
Quarterfinal: Brian Foster vs. Joao Zeferino
Quarterfinal: Joe Condon vs. Mike Ricci
Quarterfinal: Islam Mamedov vs. Jorge Patino
Reserve: LaRue Burley vs. Ramil Mustapayev

For complete WSOF 25 results and live play-by-play for both main card and "Prelims" fights CLICK HERE.