The Chicago Blackhawks acquired goaltender Henrik Karlsson in a trade Monday with the Calgary Flames for for a seventh-round pick in the 2013 NHL Draft and assigned him to their American Hockey League team. Karlsson, 29, was beaten out in training camp by Leland Irving for the Flames' backup goaltending job to Miikka Kiprusoff. Karlsson went 1-4-2 in nine games for the Flames last season with a 3.17 goals-against average and .909 save percentage. Blackhawks backup goalie Ray Emery is recovering from a hip problem and Karlsson could provide insurance behind No. 1 goaltender Corey Crawford.