The St. Louis Blues signed defenseman Roman Polak to a five-year contract extension Thursday. The deal is worth a total of $13.75 million, a source told ESPN.com. Polak, 25, had foot and wrist injuries last season, limiting him to 55 games. He finished with three goals, nine assists and 33 penalty minutes. Read more: http://sports.espn.go.com/nhl/news/story?id=6620245