Even if you think Mezger deserved the nod--and I don't--he definitely didn't "dominate" Sakuraba. I also don't think there's any reason to assume Sakuraba wouldn't be able to take Okami down repeatedly. He does have strong wrestling, but actually, between him and Mezger, I'd say Mezger has shown the better takedown defense. If you mean that you think Okami could minimize the takedowns, defend submissions and possibly outscore Sakuraba on the feet, that's possible. But that certainly wouldn't be domination in any sense of the word. He also doesn't have the same size advantage Mezger, a perennial light heavyweight, enjoyed against Saku.
Yeah I think Mezger got the nod; basically due to clean straight hands and to a lesser extent GnP while Saku was working the single. Obviusly a very close contest.
Mezger probably had size advantage on Okami but I'd say by a slight margin. Yushin in his prime at MW was walking around at 200lbs. Not sure if Mezger was much heavier in the Saku fight
The most underrated aspect in Okami's game is ironically what given him the nod in most of his biggest wins: the standup.
By standup I dont mean as much the striking itself as I mean the wide southpaw stance with quick in-out step and good knack for distance, which played a big role on his success at preventing takedowns and keep strikers guessing.
Behind that, there was serviceable counterstriking skills and underrated punching power
Skilled wrestlers as Munoz, Shields or Tanner struggled with their wrestling largely because were forced to initiate TDs from so far away.
Legit strikers as Mike Swick or Nate Marquardt looked so sloppy trying to initiate exchanges for how far they got from the target.
It could also lead to boring, unventuful rounds surely, as vs Rich Franklin, but actually pretty effective at controlling where the fight takes place.
The only man who was succesful at taking Okami down in the UFC was Chael Sonnen in his prime in the juice. He could not keep him down though.
It's interesting what he says about Okami's use of the butterfly guard. By 2009 Sonnen was already a veteran who had seen it all and fought everywhere including Pancrase:
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I agree domination is not the word. I see Okami shutting down Saku' offense with a great sprawl, not just he has a strong wrestling base - especially after training in Team Quest - but I dont think he would allow Saku to get really deep in any single in the first place largely due to the standup skills described above.
In case it went to the ground Okami had extremly good fundamentals there, had no problem on playing in Lister's guard and took Demian Maia to a close dec in ADCC. Never got his guard passed in UFC.
In my opinion, he would edge Saku in the scorecards by controlling the range with his boxing, and maybe scoring with some GnP.