^that's Aaron's point though, we've no way of knowing just how bad that first flurry tagged him. Guida's good at deception, for all of the disadvantages of the long hair (restricted vision, more vulnerable to holds/locks), it masks his head and eye movement and gives him a chance to overemphasize the impact of hits as he rolls with punches.
No question he took it right on the nose with that roundhouse, but that's just the equivalent of a monster jab. These fighters can take shots on the nose and forehead all day and keep getting up; it's when you take it on the button and your neck gets torqued, that's when you black out.
Not to downplay Guida, he's a tough sumbitch. But he's not superhuman. He really makes a good show of his conditioning though, jumping up and down after the match and all. I think he likes the illusion of being superhuman