Probably a combination. Body shots often have a delayed reaction and that first one really seemed to take the wind out of his sails. Prior to that Limond had been slowing down, so I think a combination of fighting being fatigued at altitude and hurting a lot to the body which Morales kept targetting.

Morales looked a bit shot for the first3, but he did sharpen up well. I don't know how he fares against anyone good tbh.