The main event of Submission Underground 4 (SUG4) has been set, as two SUG veterans, Dillon Danis and Jake Shields do battle.
The bout and entire main card for the May 14 event was announced today on FloGrappling.com.
Danis took on AJ Agazarm in the main event of SUG3 and was able to beat him in overtime. Danis has spent a lot of the last couple of years training with UFC bad boy Conor McGregor.
Shields beat Chris Lytle in the very first SUG event in July 2016.