Los Angeles Kings left wing Simon Gagne has been sidelined by a concussion, a source told ESPN.com's Pierre LeBrun on Tuesday. Earlier Tuesday, the Kings said Gagne did not accompany the team to Chicago on Tuesday morning after suffering an upper-body injury the night before during a 4-3 victory against the visiting Phoenix Coyotes. Read more: http://espn.go.com/los-angeles/nhl/story/_/id/7394292/los-angeles-kings-simon-gagne-concussion
