Kruger signed a two-year contract with the ZSC Lions in Switzerland on Friday.
Kruger is expected to represent Team Sweden at the upcoming IIHF World Championships, Scott Powers of The Athletic reports.
Coach Jeremy Colliton is hopeful that Kruger (foot) will be able to play Sunday against the Stars, Eric Lear of the Blackhawks' official site reports.
Kruger injured his foot during Friday's game versus the Avalanche and won't return, Mark Lazerus of The Athletic reports.
Kruger is only averaging 10:38 of total ice time per contest this campaign, but 1:52 of that time can be attributed to his work on Chicago's penalty kill.
The Blackhawks activated Kruger (concussion) off injured reserve Friday.
Kruger (concussion) was able to join his teammates on the ice Thursday, but remains on injured reserve, Chris Wescott of the Blackhawks' official site reports.
The Blackhawks placed Kruger (concussion) on injured reserve Wednesday.
Kruger has entered the league's concussion protocol after Ryan Hartman elbowed him in Tuesday's win over the Predators, Mark Lazerus of The Athletic reports.
Kruger left Tuesday's game versus the Predators after taking Ryan Hartman's elbow to his face, Mark Lazerus of The Athletic reports.