Wagner inked a professional tryout agreement with Pittsburgh on Wednesday.
Wagner is not expected to receive a qualifying offer from the Blackhawks, Ben Pope of the Chicago Sun-Times reports.
Wagner's hand infection has cleared, and he's been given the green light from a medical standpoint, but he'll need to participate in a few practices before potentially seeing game action, Ben Pope of the Chicago Sun-Times reports.
Wagner (undisclosed) didn't take part in Monday's practice, Charlie Roumeliotis of NBC Sports Chicago reports.
Wagner was traded to the Blackhawks in exchange for future considerations Friday.
Wagner was loaned to AHL Ontario on Monday.
Wagner was promoted from AHL Ontario on Sunday.
Wagner was waived by the Kings on Thursday, Stephen Whyno of the Associated Press reports.
The Kings reassigned Wagner to AHL Ontario on Sunday, Lisa Dillman of The Athletic reports.
The Kings recalled Wagner from AHL Ontario on Saturday, Lisa Dillman of The Athletic reports.