Chicago released Bjork on Sunday from his professional tryout agreement and assigned him to AHL Rockford, per Charlie Roumeliotis of NBC Sports Chicago.
Bjork is not expected to receive a qualifying offer from the Blackhawks, Ben Pope of the Chicago Sun-Times reports.
Bjork collected a goal in a 5-4 overtime loss to Philadelphia on Thursday.
Bjork (lower body) will return to the lineup Sunday against Vancouver, Mark Lazerus of The Athletic reports.
Bjork (undisclosed) won't join the Hawks for their upcoming five-game road trip but could link up with the team once cleared to play, Charlie Roumeliotis of NBC Sports Chicago reports Monday.
Bjork (undisclosed) will not be in the lineup Saturday in Tampa Bay, Ben Pope of the Chicago Sun-Times reports.
Bjork was recalled by the Blackhawks on Friday, Tracey Myers of NHL.com reports.
Bjork was traded to Chicago from Buffalo on Thursday in exchange for future considerations, Ben Pope of the Chicago Sun-Times reports.
Bjork has been sent back to AHL Rochester on Saturday, according to Lance Lysowski of The Buffalo News.
Bjork was called up from AHL Rochester on Tuesday.