Lagace has been assigned to AHL Providence.
Lagace signed a one-year, two-way contract with the Bruins on Monday, Renaud Lavoie of TVA Sports reports.
The Golden Knights reassigned Lagace to AHL Chicago on Tuesday, Jesse Granger of The Athletic reports.
Lagace was called up from AHL Chicago under emergency conditions Sunday.
Lagace was reassigned to AHL Chicago on Monday, TSN reports.
Lagace was recalled by the Golden Knights on an emergency basis Sunday, David Schoen of RJ Sports reports.
Lagace was shipped down to AHL Chicago on Friday.
Lagace allowed four goals on 31 shots in a 5-2 loss during his season debut against the Hurricanes on Friday.
Lagace will start between the pipes Friday on the road against the Hurricanes.
Lagace was reassigned to AHL Chicago on Thursday.