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Mark Zuckerberg has surgery after injuring knee during training for mixed martial arts fight | US News
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Mark Zuckerberg has torn one of his anterior cruciate ligaments (ACLs) while training for a fight. The mixed martial arts (MMA) enthusiast posted a picture on Instagram showing him in a hospital bed with his left leg elevated and heavily bandaged. The ACL is one of the ligaments inside the knee and “gives the knee…