Allen was traded to the Canadiens on Thursday in exchange for forward Rene Bourque. Allen becomes the second addition the Habs have made to their blue line in the last two weeks, after the team acquired Sergei Gonchar from the Stars via trade Nov. 11. The 34-year-old, who appeared in six games with the Ducks, doesn't have much offensive ability in his arsenal, but he's been quite reliable in his own zone over his career. He's in the final season of a three-year, $10.5 million contract, so he'll just amount to a rental player for the Habs.