With a peak Tua, I see this turning out a lot like the first Rahman-Tua fight, albeit with a cleaner finish. I think Lyle had the skill, the jab and the deterring power to win nearly every round against Tua, but Lyle has two fatal weaknesses here: (a) stamina and (b) a tendency to be open when on the outside. Lyle also had very poor survival skills, which cost him the Ali fight and possibly the Foreman fight. Tua's underrated defence skills and iron chin would keep him from being stopped early on, while we all know Tua's capacity for late round finishes. Tua by KO sometime after round 8 in a brutal fight. This would have been a great war to watch.
Lyle KO5 if it teh best Ronny who had war with Foreman. If it not then Tua get late KO while behind on points