Defensive for sure, but he throws a looping left that leaves him open for a counter right from Donaire. I think the speed & power of Donaire along with the step up in weight for Narvaez will be too much to over come. Just from looking at a photo of these two at a press conference, Donaire looked liked he wants to decapitate this guy. Looks mean as hell and his killer instinct will manifest itself tonite.