Breaking down Bruins’ additions of Greg Zanon, Mike Mottau, Brian Rolston » Greg Zanon, Jordan Caron

Greg Zanon was the Bruins' biggest addition at the deadline. (AP)

Greg Zanon was the Bruins’ biggest addition at the deadline. (AP)

Boston Bruins right wing Jordan Caron (38) falls to the ice as he battles Minnesota Wild defenseman Greg Zanon (5) for possession during the first period of an NHL hockey game, Sunday, Feb. 19, 2012, in St. Paul, Minn. (AP Photo/Genevieve Ross)