Cholowski, 23, was previously selected by Seattle in the 2021 NHL Expansion Draft from the Detroit Red Wings. Cholowski was selected by Detroit in the first round, 20thoverall, in the 2016 NHL Draft.
The 6'2", 197-pound defenseman appeared in 16 games for Detroit last season, recording three points (1g, 2a).
In 104 career games with Detroit, the Langley, British Columbia, native has 27 points (10g, 17a).
In 69 career games in the AHL with the Grand Rapids Griffins, Cholowski has 35 points (6g, 29a), including 10 points (3g, 7a) in 13 games last season.
Malenstyn, 23, missed the 2020-21 season due to injury. In 120 career games with the Hershey Bears, the 6'3", 200-pound forward has recorded 31 points (14g, 17a).