Ryan Garcia tells TMZ Sports Jake Paul would probably get "beat up" by Floyd Mayweather if the two ever got in the ring ... but he did put at least some respect on the YouTuber-turned-boxer's game -- saying he believes the tilt would at least go the distance.
A potential Paul vs. Mayweather fight appears to be in the works ... after the guys got into a heated back-and-forth outside of the Miami Heat game on Wednesday night.
So, when we got Garcia out promoting his upcoming match with Gervonta Davis out in LA this week -- we had to ask ... who'd win if the fight went down?
Garcia made it clear that despite his friendship with Jake, his money is on Floyd ... "but, guess what," he said, "Jake won't get knocked out."
His explanation for why was simple ... Mayweather couldn't KO Jake's big bro, Logan, in their exhibition match back in June 2021 -- and he obviously believes Jake's a better fighter.
As for the meetup in the streets this week ... Garcia called out Floyd for it all, saying it wasn't "right" to confront Paul with a huge entourage.
But, Garcia told us he isn't too worried about that matchup ... saying his focus is solely on Davis -- who he'll take on next month after years of smack talk.
Both guys predicted a knockout victory -- with Tank telling us at the event he thinks his win will come in the seventh or eighth round.