Blues looking for a d-man

Speaking of the Blues, sources around the league say GM Doug Armstrong is on the lookout for a left-handed, top-four type blueliner, a guy who can play with either Alex Pietrangelo or Kevin Shattenkirk on either of the top two pairings.

Easier said than done at midseason, and it might have to be something Armstrong waits until the summer to get.

http://espn.go.com/blog/nhl/post/_/id/22580/rumblings-fighting-pronger-and-more