Submission Underground 21: Fowler vs. Martinez is a grappling event to take place on March 28, 2021 at the Roseland Theater in Portland, Oregon, United States.
Fight Card
Main Card (UFC Fight Pass)
Mason Fowler vs. Richie Martinez SUG Championship
Roxanne Modafferi vs. Amanda Loewen
Andy Varela vs. Satoshi Ishii
Jessica Eye vs. Ilima-Lei Macfarlane
Kyle Chambers vs. Chase Davis
Andrew Alexander vs. Joseph Mckay
Don Stoner vs. Philip Schwartz