Dallas Cowboys starting middle linebacker Sean Lee has been ruled out for Sunday's win-or-go-home game against the Philadelphia Eagles, a source close to the situation told ESPN NFL Insider Adam Schefter. Lee's sprained neck, suffered against Chicago on Dec. 9, is more significant than originally thought, according to the source. Read more Lee's sprained neck, suffered against Chicago on Dec. 9, is more significant than originally thought, according to the source. Read more http://espn.go.com/dallas/nfl/story/_/id/10193658/dallas-cowboys-sean-lee-vs-philadelphia-eagles