Donskoi announced his retirement from the NHL on Sunday, Elliotte Friedman of Sportsnet reports.
Donskoi suffered a concussion during preseason and has yet to return to the ice, Tiia Honkamaa of Jatkoaika reports.
Donskoi (upper body) is still listed as day-to-day, Scott Malone of Root Sports reports.
Donskoi (upper body) was placed on injured reserve Sunday, per CapFriendly.
Donskoi (upper body) didn't take part in Monday's practice, Andy Eide of the Kraken's official sitereports.
Donskoi (undisclosed) won't return to Thursday's game versus the Canucks, Kate Shefte of The Seattle Times reports.
Donskoi produced an assist and four shots on goal in Sunday's 4-3 loss to the Jets.
Donskoi (undisclosed) was placed on injured reserve Friday.
Donskoi scored a goal in Saturday's 5-2 loss to the Capitals.
Donskoi (undisclosed) will be in Tuesday's lineup against Nashville, Marisa Ingemi of The Seattle Times reports.