Elon Musk says the fight with Mark Zuckerberg is officially on -- he announced Friday the billionaire brawl is all set to go down at "an epic location" ... though he added the two won't face off for a while, 'cause he needs minor surgery first.
Musk made the revelations in a series of early morning tweets ... explaining he and Zuck have just finalized a bunch of the details about their upcoming tilt.
First, the Tesla honcho said the fight will no longer be put on by Dana White and the UFC -- saying it all will now "be managed by my and Zuck's foundations.