The lights have been turned off on Buffalo Bills linebacker Shawne Merriman's season. Merriman, who earned the nickname "Lights Out" when he was one of the NFL's most feared players, was placed on season-ending injured reserve on Tuesday because of a right Achilles' tendon injury. It's the same injury that forced the Bills to place him on IR last November after they signed him as a free agent following his release from the San Diego Chargers. "Shawne has worked extremely hard, but unfortunately his Achilles flared back up and it doesn't appear that he will be able to return to the field anytime soon," Bills general manager Buddy Nix said in a statement released by the team Tuesday. "We felt it was in the best interest of our team and for Shawne to put him on IR." Read more: http://espn.go.com/nfl/story/_/id/7148817/shawne-merriman-buffalo-bills-put-ir-achilles-injury