Jake Paul achieved a great victory Mike Tyson on Friday night…and he wasted no time trolling again Conor McGregor for an MMA fight.

Jake defeated Tyson with one unanimous decision after what many considered a lackluster fight… and immediately turned his sights on CM… reigniting the feud.

In his post early Saturday, Jake posted on No weight class. Just like before, but you don’t do that.”

JP also threw some shade at CM’s side after the big fight… claiming the guy wouldn’t be able to handle the smoke.

Of course…this is nothing new…Jake has been calling out Conor for years…saying that even in an Octagon, per UFC rules, he would KO the Irish star.

For his part… CM has responded a few times – mostly dismissing Jake as a “little thing” – but he’s never closed the door on a potential fight.