Mandolese was called up from AHL Colorado on Sunday.
Mandolese was put on waivers Saturday, according to Elliotte Friedman of Sportsnet.
Mandolese signed a one-year, two-way contract with the Avalanche on Tuesday.
Colorado acquired Mandolese and a 2026 seventh-round pick from Ottawa on Monday in exchange for a 2026 sixth-round selection.
Mandolese has been reassigned to AHL Belleville, per the NHL media site.
Mandolese inked a one-year, two-way contract with Ottawa on Tuesday, per PuckPedia.
Mandolese was sent down to AHL Belleville on Wednesday.
Mandolese was promoted from AHL Belleville on Tuesday, TSN 1200 Ottawa reports.
Mandolese was assigned to AHL Belleville on Sunday.
Mandolese will get the starting nod in Calgary on Sunday, TSN 1200 Ottawa reports.