The St. Louis Blues placed defencemen Tyler Tucker and Logan Mailloux on the injured reserve on Monday morning.
Tucker is considered week-to-week with a lower-body injury, while Mailloux will be re-evaluated in eight weeks after undergoing surgery on his right hand.
Tucker, 26, posted three goals and 17 points in 69 games with the Blues last season, his fourth campaign with the organization.
Mailloux, 23, had five goals and 13 points in 67 games last season, having joined the Blues in a July 2025 trade with the Montreal Canadiens.
The Blues begin their 2026-27 season on Friday night in Dallas against the Stars.
