Harding left Game 4 after 40 minutes of play after colliding with Hawks center Jonathan Toews in the second period. Rookie Darcy Kuemper will back up Harding after finishing Game 4 on Tuesday. He gave up two goals in the third period of the Hawks' 3-0 victory, giving Chicago a 3-1 series lead.
Regular starter Niklas Backstrom has been out since Game 1 when he injured himself during warm-ups. Backstrom became Kuemper's backup when Harding went down but isn't healthy enough to dress for Game 5.