:? He was never hurt.. not even close. Maybe you're reacting to what happened in the 5th when Guzman tripped over Diaz's foot and wobbled back to the ropes.. hopefully a video will come up that clearly shows he tripped in the replay. However, this was the first fight where a punch actually impacted Guzman. I was hoping his chin would get tested here because Diaz has some serious power and is a large 135 pounder and it did. He caught Guzman with a huge right hand counter right on the chin that he didn't see coming at the end of the 2nd round and Guzman appeared slightly buzzed by it for a split second, but he was back to normal right away. Just strange to see Guzman show any kind of chin vulnerability at all.. His chin is iron and there's no reason to think otherwise, even at 135.