Jake Paul vs. Anthony Joshua is actually real -- the fight is set to go down in a matter of weeks!!
After his matchup with Gervonta Davis was scrapped, El Gallo will now face the former heavyweight champion in a professional bout on December 19 ... and Netflix will be streaming the whole thing.
Joshua is by far Paul's biggest challenge to date -- he's not in his 50s (he's 36), he's not a former MMA fighter and he's not washed.