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Sorry, Conor McGregor ... there's a "0.00% chance" you'll get your rematch with Khabib Nurmagomedov -- so says Khabib's manager.

We spoke with Ali Abdelaziz (looking fresh in his Versace shirt) after Khabib's big victory over Dustin Poirier in Abu Dhabi this weekend ... and we had to ask who's next on the hit list!!!

Of course, Dana White has said he wants Khabib to fight Tony Ferguson -- the #1 ranked lightweight contender -- but Ali says Tony's not the priority.

"Georges St-Pierre is next," Ali tells TMZ Sports ... "If Khabib is going to fight for legacy, a fight with GSP would be a huge fight."

Ali says Tony has never been a champion -- while GSP is widely regarded as one of the greatest UFC fighters of all time ... so for him, it's a no-brainer.

Plus, Ali says there's WAY more money in a Khabib vs. GSP fight ... explaining, "People would care more!!!"

Ali tells us, Khabib could be ready to take that fight before the end of 2019 -- and he's confident Georges could be ready too.

As for Conor -- who recently tweeted about wanting a 2nd crack at Khabib -- Ali says Khabib has nothing left to prove ... and since he smashed McGregor so badly in the first fight, there's no need for a rematch.

Book my rematch for Moscow. — Conor McGregor (@TheNotoriousMMA) September 7, 2019 @TheNotoriousMMA

"Not interested at all ... for what?!? We already beat him, we already whooped his ass."

Ali also says Khabib doesn't want to get involved with the "ugliness" associated with Conor ... an obvious reference to the racist and disgusting insults McGregor spewed while promoting the fight.

"We don't wanna go through with this Conor bulls**t again."