• 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

crew aboard artemis II
Innovationspace
‘It’s 13 minutes of things that have to go right’: Artemis II splashes down despite faulty heat shield
By Catherina GioinoApril 10, 2026
3 hours ago
The Navy confirmed an ‘abundant amount’ of Uncrustables when the Artemis II crew lands. Smucker’s just offered them a lifetime supply
PoliticsFood and drink
The Navy confirmed an ‘abundant amount’ of Uncrustables when the Artemis II crew lands. Smucker’s just offered them a lifetime supply
By Catherina GioinoApril 10, 2026
6 hours ago
Three people sit behind a desk and look at the phone screen of the person in the middle.
Future of WorkConsulting
Meet ‘trendslop,’ the new, AI-fueled scourge of workplace consultants everywhere
By Sasha RogelbergApril 10, 2026
6 hours ago
Amazon is still paying Jeff Bezos an $80,000 yearly salary—but $1.6 million for travel and security
Big TechCEO salaries and executive compensation
Amazon is still paying Jeff Bezos an $80,000 yearly salary—but $1.6 million for travel and security
By Marco Quiroz-GutierrezApril 10, 2026
7 hours ago
Kash Patel sits with his two fingers on lips
CybersecurityIran
First they went after medtech, then Kash Patel. Iranian hackers’ next target is likely ‘low-hanging fruit’ in water, energy, and tourism, experts say
By Jacqueline MunisApril 10, 2026
8 hours ago
scott bessent
CybersecurityFederal Reserve
The AI that found 27-year-old vulnerabilities no human ever caught before just forced an emergency meeting with every major Wall Street CEO
By Jake AngeloApril 10, 2026
10 hours ago

Most Popular

A Meta employee created a dashboard so coworkers can compete to be the company's No. 1 AI token user—and Zuckerberg doesn't even rank in the top 250
AI
A Meta employee created a dashboard so coworkers can compete to be the company's No. 1 AI token user—and Zuckerberg doesn't even rank in the top 250
By Fortune EditorsApril 9, 2026
2 days ago
The U.S. government is spending $88 billion a month in interest on national debt—equal to spending on defense and education combined
Economy
The U.S. government is spending $88 billion a month in interest on national debt—equal to spending on defense and education combined
By Fortune EditorsApril 9, 2026
2 days ago
Mark Cuban admits he made a mistake letting go of the Mavericks: 'I don't regret selling. I regret who I sold to'
Investing
Mark Cuban admits he made a mistake letting go of the Mavericks: 'I don't regret selling. I regret who I sold to'
By Fortune EditorsApril 9, 2026
1 day ago
Schools across America are quietly admitting that screens in classrooms made students worse off and are reversing years of tech-first policies
Innovation
Schools across America are quietly admitting that screens in classrooms made students worse off and are reversing years of tech-first policies
By Fortune EditorsApril 10, 2026
19 hours ago
Scottie Scheffler joined Tiger Woods and Rory McIlroy in golf's $100M club—and donated his entire Ryder Cup stipend to charity
Success
Scottie Scheffler joined Tiger Woods and Rory McIlroy in golf's $100M club—and donated his entire Ryder Cup stipend to charity
By Fortune EditorsApril 10, 2026
12 hours ago
'I hate working 5 days': Zoom CEO says traditional work schedules are becoming obsolete—and predicts a 3-day workweek by 2031
Success
'I hate working 5 days': Zoom CEO says traditional work schedules are becoming obsolete—and predicts a 3-day workweek by 2031
By Fortune EditorsApril 9, 2026
2 days 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.