Perreault (lower body) was activated from injured reserve and is likely to play Saturday versus the Senators, Jean-Francois Chaumont of Le Journal de Montreal reports.
Perreault has missed the last 22 games, but he returned to full participation in practice Friday. His return means Cedric Paquette will be a healthy scratch for this contest. Perreault is expected to play in a fourth-line role as he looks to add to the four points in 14 games he's produced this season.