Meta CEO and Facebook founder Mark Zuckerberg was forced to get surgery after tearing his ACL while training mixed martial arts. He was scheduled to have an MMA fight early next year - but those plans will likely need to be adjusted. He shared some pics from his hospital bed Friday afternoon - with the announcement of his ailment detailed in the caption. “Tore my ACL sparring and just got out of surgery to replace it. Grateful for the doctors and team taking care of me, Zuckerberg wrote on Instagram. “I was training for a competitive MMA fight early next year, but now that's delayed a bit. Still looking forward to doing it after I recover. Thanks to everyone for the love and support.”