Mark Zuckerberg's preparation for a potential fight with Elon Musk might just relegate him to sleeping on the couch ... because the billionaire revealed Wednesday his decision to build an Octagon at his home has really ticked off his wife.
Zuck got the fighting arena installed in his backyard this week ... and when he pointed it out to his significant other, Priscilla Chan, he appeared to think she'd be stoked about him being able to now grapple just a few feet from his living room.