UFC champ Francis Ngannou ain't ready to move on from a possible showdown with Jon Jones ... telling TMZ Sports that's the ONLY fight on his mind.
Ngannou was strolling through Beverly Hills this week when we asked about his fighting future ... considering the UFC and Jones seem to be miles (and millions of dollars) apart from making a deal.
In fact, Dana White has repeatedly said he's targeting Derrick Lewis for Ngannou's next opponent ... and hopes that fight will take place in the summer.
But, Ngannou says he's still got Jones on the brain when we asked who he wants to fight next -- "I want Jon Jones ... I love that fight."
In fact, seems Ngannou is still pretty hopeful the two sides can work out a deal -- and we're guessing every MMA fan out there is hoping he's right!
When we spoke with White a few weeks ago, he told us he's "absolutely moved on" from trying to make that fight ... and said he doesn't know if Jon will ever fight in the UFC ever again.
"That's up to Jon," White said ... "He could absolutely fight again at 205 lbs. He said he wouldn't fight [Stipe Miocic] and now Derrick and Francis are fighting so we'll see how that fight plays out."
"There's nothing wrong with going out on top either -- Jon Jones is undefeated, he's never been beat."