I don't think I ever saw an athlete, a challenger at that as well, not a champion you see, who said, after getting his ass kicked, that he underestimated that fighter, not he gave him too much respect, you see, but underestimated that fighter. I think he believed in his own hype, or UFC's, however you wanna cut it, that he have a death touch or something. Confidence is usually a good thing, but there comes a point it is detrimental to you when it's too much. I only saw Ngannou's fight against Overeem and his highlights, but his power was impressive, but what really impressed me was the way he was able to move. Powers are common in heavyweight, but against Overeem, the way he was able to control the distance and move, I felt, was like that of a lightweight, with a power of super super heavyweight. Personally, I don't think if Ngannou can come back from this defeat, maybe this is too early, but you might be able to say he might have gotten exposed a little bit on this groundwork, but I feel like, if Ngannou can fight like he did against Overeem, I feel like he can beat anyone in heavyweight division.