Always thought that Zoomy would break Barrera's heart in this one, and stop him late. Barrera was great but, just occasionally, he could lose a bit of heart and become a shade intimidated against unrelenting pressure or when things weren't going his way (unless he was fighting Erik, of course). Can't afford that against Zoomy and Nelson is too determined, too well-conditioned and too smart to let Barrera fight him the way he took on Hamed, offsetting the power differential etc. Nelson TKO around the tenth round.
Nelson takes a tough but clear decision (at either weight). I wouldn’t rule out him stopping MAB either, but I don’t think that is the most likely outcome either.
I think Azumah is one of the very very best .. one hell of a strong, well conditioned, tough as nails, skill, hard punching guys ..