Michael Pezzetta and Tyler Pitlick did not play for the Canadiens against the New Jersey Devils on Sunday.
Each forward sustained an upper-body injury in a 4-2 win against the Toronto Maple Leafs on Saturday and did not make the trip to New Jersey.
Pezzetta has scored eight points (five goals, three assists) in 44 games this season. Pitlick has two assists in 27 games for the Calgary Flames and Canadiens.
Montreal also played without forwards Jonathan Drouin and Brendan Gallagher, and defenseman Jeff Petry.
Drouin was placed on injured reserve Friday and may need wrist surgery, coach Martin St. Louis said Saturday. He had played two games, most recently a 3-2 overtime loss to the Boston Bruins on Monday, since returning from a wrist injury that caused him to miss 22 games.
Gallagher is out one week with a lower-body injury. He has not played since March 17, a 4-3 overtime loss to the Dallas Stars.
Petry is out indefinitely with a lower-body injury. The defenseman was injured in a 4-3 loss to the Florida Panthers on Thursday.
Jesse Ylonen was recalled from Laval of the America Hockey League on an emergency basis Saturday. The forward has scored two points (one goal, one assist) in seven games with Montreal this season.