In February 2012, Gunnar returned to MMA with a first round armbar submission win over Ukrainian fighter Alexander Butenko at Cage Contender 12 in Dublin Ireland.
I februar 2012, vendte Gunnar tilbage til MMA med en 1. omgangs armbar-submission-sejr over den ukrainske kæmper, Alexander Butenko på Cage Contender 12 i Dublin i Irland.