The Chicago Blackhawks placed goaltender Corey Crawford on injured reserve Monday.
The designation comes a day after the veteran netminder was forced from Sunday's game against the San Jose Sharks with a concussion.
In turn, the team recalled goaltender Collin Delia from the Rockford IceHogs of the American Hockey League on an emergency basis.
While Crawford's timetable has yet to be determined, many fear the worst after the 33-year-old was sidelined for 10 months from last December to October due to a concussion.
In 23 games this season, Crawford has posted a 6-14-2 record with a .902 save percentage and a 3.28 goals-against average.