The Rising Risk of ACL Injuries and How to Protect Your Knees, According to Physical Therapist

Unfortunately, ACL injuries are far too common, with between 100,000 and 200,000 ACL tears occurring every year, according to ...
49ers Webzone

Source: 49ers rookie DL Williams has torn ACL

Testing on Monday revealed a torn ACL for 49ers defensive lineman Mykel Williams, a source told ESPN's Jeremy Fowler, ...