Submission Underground 17 is a grappling event that was held on Sunday 08.30.2020 at 12:00 PM ET in ...

The submission grappling event created by Chael Sonnen, Submission Underground, returns for its 19th...

Submission Underground 16 took place Sunday, July 12, 2020 with 10 fights in Portland, Oregon....

Submission Underground 15 took place Sunday, June 21, 2020 with 9 fights in Portland, Oregon....

Submission Underground finally makes its 2021 debut today with Submission Underground 21. The card i...

Submission Underground returns to Portland, Oregon with an eight-man absolute tournament featuring s...