Mark Zuckerberg, the CEO of Meta Platforms Inc., recently underwent surgery to repair a torn knee ligament that he sustained during a mixed martial arts session. In an Instagram post, Zuckerberg shared photos of himself in a hospital bed with his knee bandaged and in a brace. He revealed that he tore his ACL while sparring and had just undergone surgery to replace it. Despite the injury, the 39-year-old CEO expressed his determination to continue his training for a competitive MMA fight early next year.