“He’ll be out (Monday) again and then we’ll just see how he progresses after,” Bruins interim coach Joe Sacco told reporters after Sunday’s practice. “Like I said he was going to be out through the weekend then we’ll re-evaluate him after that and see where he’s at."

The Boston Bruins announced a series of transactions Tuesday, placing defenseman Charlie McAvoy and forward Mark Kastelic on Injured Reserve (IR), defenseman Hampus Lindholm on Long-Term Injured Reserve (LTIR) and recalling forward Matt Poitras and defender Michael Callahan from the AHL’s Providence Bruins.

The Boston Bruins will be without Charlie McAvoy due to an undisclosed injury. Joe Sacco has explained the situation but hasn't delved into what caused it.

BOSTON — Bruins interim coach Joe Sacco had plenty to sort out when he met with the media after morning skate ahead of Tuesday’s game against the Lightning at TD Garden. Two players were called up, two were placed on injured reserve and a third was moved from injured reserve to long-term injured reserve. Sacco explained:

Matthew Poitras is back with the Boston Bruins, but not under ideal circumstances. In addition to calling up Poitras and defenseman Michael Callahan from AHL Providence on Tuesday morning, the Bruins placed defenseman Charlie McAvoy and forward Mark Kastelic on injured reserve and moved defenseman Hampus Lindholm to long-term injured reserve.

The Boston Bruins have been without defenseman Hampus Lindholm for about a month with a lower-body injury, but another key blue liner is about to join him on th

Lindholm has been a 22-point flop. He is signed for six more seasons with no-move protection through 2029. Lindholm, 30, is practically untradeable, even if the Bruins eat part of his remaining salary.

Boston Bruins defenseman Charlie McAvoy is being shut down for a few games with a nagging injury, interim head coach Joe Sacco said Tuesday, per Boston Sports Journal's Joe Haggerty.The Bruins placed McAvoy on injured reserve amidst a flurry of moves.

Lindholm will miss his 29th straight game versus Tampa Bay on Tuesday, and landing on LTIR won't impact his recovery timeline. He has been skating, but it remains unclear when he will be ready to return to the lineup.

The Bruins defenseman has been working his way back from a lower-body injury suffered Nov. 12 in St. Louis with lots of off-ice rehab sessions and, lately, some solo on-ice workouts with skills coach John McLean.

The Bruins called up Matt Poitras from Providence on Tuesday, but the team also placed Charlie McAvoy on injured reserve.

Boston Bruins forward Mark Kastelic was on the ice again yesterday but isn’t ready to play just yet. Joe Haggerty: Bruins defenseman Hampus Lindholm was skating on his own for the second consecutive day.