ACL injuries are down, the NFL has told its Health and Safety Advisory Committee. In a memo to the committee sent earlier this week and obtained by The Associated Press, the league said research showed there were 30 ACL injuries in games through the preseason and first 13 weeks of the schedule. There were 39 such injuries in 2012, 35 in 2011, 37 in 2010, and 31 in 2009. http://espn.go.com/nfl/story/_/id/10195750/nfl-says-acl-injuries-13-weeks-season