I have seen goldfish with more teeth than Rios. Ferocious? Really ? It's quite easy to be ferocious when you don't make weight and have to pay someone to allow you to come in to the ring so much heavier. Until he shares the ring with someone smart enough to make space and make him pay for his come forward style I think it's a bit early to crown him mister ferocious. If he still marches forward after getting caught clean a few times then maybe, but you could make a case for Murray being just as fierce after not stepping back whilst being so much lighter and having that much damage to your face.