The Dallas Cowboys completed a trade with the Baltimore Ravens on Tuesday to acquire linebacker Rolando McClain, who will come out of retirement. Dallas traded a 2015 sixth-round pick for McClain and Baltimore's 2015 seventh-round pick, a league source told ESPN NFL Insider Adam Schefter. McClain was officially reinstated from the reserve/retired list Tuesday. To make room for his addition, the Cowboys placed linebacker Sean Lee on injured reserve. Lee suffered a torn ACL in May and was expected to miss the 2014 season. Read more http://espn.go.com/dallas/nfl/story...ealt-dallas-cowboys-baltimore-ravens-unretire