The Boston Bruins placed forward David Krejci on injured reserve Tuesday and recalled Anders Bjork on an emergency basis.
Krejci has not played since sustaining an upper-body injury against the Anaheim Ducks on Oct. 14. He has one assist in five games this season.
The 33-year-old appeared in 81 games last season, scoring 29 goals and matching a career-high with 73 points.
Bjork has three goals and eight points in seven games with the AHL's Providence Bruins this season. The 23-year-old winger scored one goal and added two assists in 20 games with the Bruins last season.
Boston (5-1-2) will host the Toronto Maple Leafs on Tuesday night.