Ullmark (back) was activated from long-term injured reserve Sunday, per the NHL media site.

EDGE Analysis

Ottawa assigned Leevi Merilainen to AHL Belleville in a corresponding move. Ullmark could return to the crease in Monday's road matchup versus Nashville after missing the last 18 games. He has posted a 12-7-2 record with three shutouts, a 2.38 GAA and a .915 save percentage across 23 appearances this season.