I'll be accused of over simplifying this but why couldn't AJ have trained for more endurance. If he hadn't gassed out after round 9 he would have had a chance. Surely, it was worth sacrificing some power to build the stamina that would be need to live with Usyk. The stories of Usyk swimming 10km, riding 100km suggest that aerobic conditioning might be more of a priority for him.I guess he feared gassing out and then making headlines for getting KOd but I'd have liked AJ to put it on Usyk from round one (maybe not literally round one, but much earlier than round none). Easier said than done yeah but I think he was still too reserved and didn't use his size.