They are set to face each other in ISFA Pro MMA 1: Clash of Champions.
The fight is organized by the International Submission Fighting Association (ISFA).
The fight is scheduled to take place on June 18, 2016
The fight is set to start at 24:00 GMT.
The venue for the fight is in PMG Sports Hall.
Kaloyan Kolev represents Bulgaria, and Plamen Petkov represents Bulgaria.