http://espn.go.com/nfl/story/_/id/13449656/jarius-wynn-buffalo-bills-tears-acl Torn ACL. He was likely their primary backup at DE.
http://profootballtalk.nbcsports.co...-to-torn-acl-two-receivers-leave-due-to-heat/ They also just lost backup MLB Ty Powell for the season with an ACL injury too. Their depth on D has taken quite a hit this week.