Grenade explodes on top of Ukrainian Soldier

GoPro footage released by Ukrainian sources shows a pair of Ukrainian Soldiers in a close range gunfight with Russian troops. The Soldier in front of the recording Ukrainian appears to have been shot at one point, and is continuing to return fire while the recording Soldier preps and throws a frag. Moments later, either the grenade tossed by the Ukrainian, or a return grenade from the Russian side of the gunfight detonates directly underneath of the Ukrainian in the front of the camera. It's difficult to tell from the footage, because it cuts off almost immediately after detonation, but it appears as if the brunt of the explosion is absorbed by the back and side of wounded man. The full context of this video is still in question at this time, but according to Ukrainian sources, a medic was able to stabilize the seriously wounded man, and he is expected to make a recovery. This footage was allegedly recently recorded in December, but it's unclear exactly where it was filmed