The Canadiens are getting forward Dustin Boyd, goalie Dan Ellis and future considerations from Nashville in the trade announced Tuesday. The Predators are also receiving future considerations from Montreal.
"Very excited about the trade! Its an honor to be part of a team with such great tradition and passion! Hope we can figure something out!" Ellis tweeted, referring to the fact that he can become an unrestricted free agent if he doesn't sign a deal before Thursday at 12 p.m. ET.
"Very surprised. But excited," Ellis said in a text message to ESPN.com later.
Kostitsyn, who had seven goals and 11 assists in 47 regular-season games last season, refused to accept a demotion to AHL Hamilton at the start of the season, requested a trade and eventually joined the Bulldogs. He later walked out on them.
Kostitsyn was recalled in November but never really found his stride, eventually being told by coach Jacques Martin to sit out a practice during the playoffs.
He played in only five games during Montreal's run to the Eastern Conference finals and just one after the first round.
Information from The Associated Press was used in this report.