WSOF president Ray Sefo made the announcement on Wednesday via Twitter.
Fitch (24-5-1) was released by the UFC after a decision loss to Demian Maia at UFC 156 on Feb. 2. He’s gone 1-2-1 in his last four fights.
Burkman (25-9) was released by the UFC in 2008 after dropping three fights in a row, but has gone 7-1 since leaving the organization. He’s coming off a first round knockout of Aaron Simpson at WSOF 2 on March 23.
The fight is a rematch. The two first met at UFC Fight Night 4 in 2006. Fitch defeated Burkman that night by rear naked choke in the closing seconds of the second round.
The fight will headline the June 14 card, Sefo told MMAFighting.com.
Prior to WSOF 2, Sefo revealed plans to implement title fights in the start-up promotion. Burkman, the top 170-pound contender in WSOF, recently said that Fitch didn’t deserve a title shot in his first outing for the promotion, and he won’t get one. The bout will be a non-title fight.
The venue for the event has yet to be announced.