• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
TechBillionaires

Elon Musk says the fight with Mark Zuckerberg is on—he just needs an MRI first

By
Chloe Taylor
Chloe Taylor
Down Arrow Button Icon
By
Chloe Taylor
Chloe Taylor
Down Arrow Button Icon
August 7, 2023, 6:30 AM ET
(Left) Tesla CEO Elon Musk has challenged Meta CEO Mark Zuckerberg (right) to a cage fight.
Elon Musk has challenged Mark Zuckerberg to a cage fight in Las Vegas. From left: Nathan Laine—Bloomberg/Getty Images; Chesnot—Getty Images

Elon Musk and Mark Zuckerberg are divided on a lot of things—including whether their highly anticipated cage fight will really go ahead.

Recommended Video

The tech billionaires each weighed in on the match over the weekend, giving updates on the so-called biggest fight ever in the history of the world.”

In a series of posts to his X platform (formerly Twitter) on Sunday, Musk said he had begun to physically prepare for the event, which he labeled “a civilized form of war.”

“Am lifting weights throughout the day, preparing for the fight,” he revealed. “Don’t have time to work out, so I just bring them to work.”

However, the world’s richest person went on to disappoint those expecting an imminent date for his face-off with social media rival Zuckerberg, explaining that the “exact date is still in flux” as he is taking a cautious approach to the physical demands of the fight.

“I’m getting an MRI of my neck and upper back tomorrow,” Musk said. “May require surgery before the fight can happen. Will know this week.”

Last month, he said he “might need an operation to strengthen the titanium plate holding my C5/C6 vertebrae together.”

He appeared certain, however, that the fight would be going ahead at some point in the future.

“Zuck vs. Musk fight will be livestreamed on X,” he insisted. “All proceeds will go to charity for veterans.”

Zuckerberg ‘not holding his breath’

Musk’s updates came as Zuckerberg cast doubt on whether the Tesla and SpaceX CEO was serious about meeting him in the cage.

“I’m ready today,” he said on his X rival app, Threads. “I suggested Aug. 26 when he first challenged, but he hasn’t confirmed. Not holding my breath.”

Post by @zuck
View on Threads

The chief executive of Facebook and Instagram parent Meta added that regardless of Musk’s participation in the proposed fight, he would “continue competing with people who train no matter what happens here.”

Zuckerberg has undergone a fitness transformation over the past few years, taking up the martial art of Brazilian jujitsu during the pandemic and participating in the superintense Murph Challenge as part of his grueling exercise regime.

Musk vs. Zuckerberg

Musk and Zuckerberg—who between themselves control several of the world’s biggest social media platforms—publicly agreed to battle out their differences in a mixed martial arts match back in June.  

The duo have been publicly critical of each other’s business decisions in recent months after Zuckerberg’s Meta launched Threads—a rival to Twitter, the platform Musk bought for $44 billion last year.

Since purchasing the site in a bid to transform it into an “everything app,” Musk’s now-private company has seen its valuation plummet by two-thirds thanks to increased debt, unpredictable leadership, and an exodus of revenue-driving advertisers.   

Zuckerberg has suggested Threads could be a serious contender to dethrone Twitter as a communications platform, arguing that Musk had blown his chance to establish it as the go-to conversation app.

Over the weekend, he took a swipe at Musk’s assertion that their fight would be streamed on X.

“Shouldn’t we use a more reliable platform that can actually raise money for charity?” Zuckerberg asked.

For his part, Musk has lashed out at Zuckerberg and Threads, saying the platform “makes no sense” and accusing his rival of “cheating.”

Before his Twitter acquisition closed, Musk had argued that Zuckerberg held too much power in the social media world.

Interest in Threads boomed after it became available to the public—but Meta has struggled to maintain the momentum, with traffic to the site tumbling 82% in the month after its launch.

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Author
By Chloe Taylor
LinkedIn iconTwitter icon
See full bioRight Arrow Button Icon

Latest in Tech

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Tech

AIAI agents
OpenAI cofounder says he hasn’t written a line of code in months and is in a ‘state of psychosis’ trying to figure out what’s possible
By Jason MaMarch 21, 2026
3 hours ago
david
CommentaryScience
The one skill that separates people who get smarter with AI from everyone else
By David Rock and Chris WellerMarch 21, 2026
9 hours ago
Geoffrey Hinton standing in front of a white and grey background.
AITech
‘Godfather of AI’ says tech companies aren’t concerned with the AI endgame. They’re focused on short-term profits instead
By Sasha RogelbergMarch 21, 2026
10 hours ago
MagazineCoding
Cursor’s crossroads: The rapid rise, and very uncertain future, of a $30 billion AI startup
By Allie GarfinkleMarch 21, 2026
10 hours ago
war
CommentaryMiddle East
Companies are now on the front lines of war. They need to act like it
By Jeremy BashMarch 21, 2026
10 hours ago
A woman looks frustrated a computer
AIWomen
Women are avoiding the very technology that threatens them most, as expert warns of a ‘two-tiered AI economy’ approaching
By Jacqueline MunisMarch 21, 2026
13 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.