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Submission Underground 8 took place Sunday, May 12, 2019 with 6 fights at Roseland Theater in Portland, Oregon.
Jake Shields
Austin Vanderford
Jake Ellenberger
Diego Sanchez
Craig Jones
Dennis Hallman
Gilbert Melendez
Pat Healy
Fabiano Scherner
Matt Mitrione
Micah Brakefield
Shaun Kiatvongcha