As to the thread, it's a head scratcher. I think if the first Cooper fight is relevant (which it is, IMO) it's to show that miracles can happen. Had they never fought, not one poster would bet one cent on Cooper flooring Ali. And that's very reasonable to assume, had they not fought. But he did deck Ali, so once again, this is boxing and the sport makes a fool out of conventional wisdom sometimes. But barring some freak, out-of-the-blue punch which does Ali in, it's quite hard to envision anyone doing it, at least for me. It would suggest 2 scenarios: 1) Someone has enough one-punch power to ice Ali instantly. 2) Someone has the skill to beat Ali down, wear him out, and then get him out of there. Essentially displaying overall technical mastery of Ali. Either scenario doesn't really seem plausible. Watching Ali as an old, shot fighter taking flush bombs from Shavers has basically convinced me Ali isn't going to sleep after one punch. Knock him down? That's possible. Keep him down? Very unlikely that. (Barring the freak shot mentioned earlier) Second scenario also doesn't seem likely. I can imagine Ali being outpointed, but beaten down to the point of being defenceless? Man, hard to envision. I suppose there is a third scenario, whereby he gets heavily dropped by a single punch, groggily gets up, and is finished off by a lethal combination. STILL hard to envision, but it's plausible. So who has the right blend of punching power, technical ability, handspeed to catch him with something he doesn't see, and the finishing skill to finish him off? That's something I'll leave for you guys to debate.