Lajoie was placed on waivers Saturday for the purpose of reassignment to AHL Coachella Valley.
Lajoie signed a one-year, two-way contract with Seattle on Monday.
Lajoie was reassigned to AHL Toronto on Saturday.
Lajoie was called up from AHL Toronto on Tuesday.
Lajoie isn't listed on the Maple Leafs' roster, Jonas Siegel of The Athletic reports, indicating the defenseman was returned to AHL Toronto on Sunday.
Lajoie was recalled from AHL Toronto on Saturday.
Lajoie is practicing with the Maple Leafs on Thursday, per Terry Koshan of The Toronto Sun, indicating he's been recalled by the big club.
Lajoie was loaned to AHL Toronto on Tuesday.
Lajoie was recalled from AHL Toronto on Monday.
Lajoie was reassigned to AHL Toronto on Monday, per CapFriendly.