The Chicago Tribune is reporting that goaltender Corey Crawford is not with the team for the morning skate. The Blackhawks, the only team in the League without a regulation loss, host the San Jose Sharks on Friday (8:30 p.m. ET, NHLN-US).
Karlsson, 29, is 2-2-0 with a 2.33 goals-against average and .919 save percentage in four AHL games the Rockford IceHogs.
Karlsson was acquired by the Blackhawks from the Calgary Flames last month for a 2013 seventh-round draft pick.