CANADIENS (33-32-6) at SENATORS (33-31-8)
TV: 7 p.m. ET, TVA Sports, SN, NHL.TV
OTTAWA -- The Montreal Canadiens, already without three regular defensemen, including P.K. Subban, also will be missing defenseman Mark Barberio on Saturday against the Ottawa Senators at Canadian Tire Centre.
Barberio is out with symptoms of a concussion after being injured against the Buffalo Sabres in Montreal's 3-2 overtime win on Wednesday.
Barberio, 25, was signed as a free agent last summer and had played 30 games in the wake of injuries to Subban, Jeff Petry and Tom Gilbert.
Subban, who has missed three games with a neck injury, will not play Saturday.
Darren Dietz, Montreal's fifth-round pick (No. 138) in the 2011 NHL Draft, will take Barberio's place.
Dietz, 22, played his first NHL game March 12 against the Minnesota Wild. He was called up from St. John's of the American Hockey League on Thursday.
"This is a young defenseman that looking at his background in junior was capable of putting up some numbers," Canadiens coach Michel Therrien said. "He's got a good hockey mind. He can move the puck and he's pretty solid 1-on-1.
"With all the injuries we've got, it's another opportunity for him to show what he's capable of doing."
In his last year with the Saskatoon Blades of the Western Hockey League, Dietz had 24 goals and 34 assists. He has four goals and 12 assists with St. John's this season.
The Senators are seven points out of the second wild-card position into the Stanley Cup Playoffs from the Eastern Conference, and the Canadiens are nine behind.
The Senators and Canadiens both are coming off games against the Sabres. Ottawa lost 3-1 against Buffalo on Friday. The Senators are 2-9 in the second game of back-to-back games this season.
"We addressed a bunch of stuff this morning," Senators defenseman Marc Methot said. "One of the main topics was we needed more traffic in front of the net in the offensive zone. We weren't making life difficult enough for their goaltender. I'm sure there's other areas of the game we've got to improve as well, but that was one of the main focuses today."
Ben Scrivens, who was in goal for the win against Buffalo, will start for the Canadiens. Goaltender Andrew Hammond will start for the Senators.
Here are the projected lineups:
Max Pacioretty - Alex Galchenyuk - Sven Andrighetto
Paul Byron - Tomas Plekanec - Lars Eller
Stefan Matteau - Michael McCarron - Lucas Lessio
Torrey Mitchell - Phillip Danault - Mike Brown
Andrei Markov - Nathan Beaulieu
Alexei Emelin - Greg Pateryn
Victor Bartley - Darren Dietz
Scratched: Jacob De La Rose.
Injured: Carey Price (lower body), Daniel Carr (lower body), Jeff Petry (sports hernia), Brian Flynn (lower body), David Desharnais (broken foot), Tom Gilbert (knee), Brendan Gallagher (lower body), P.K. Subban (neck), Mark Barberio (concussion-like symptoms).
Zack Smith - Jean-Gabriel Pageau - Mark Stone
Mike Hoffman - Mika Zibanejad - Bobby Ryan
Matt Puempel - Scott Gomez - Alex Chiasson
Nick Paul - Curtis Lazar - Chris Neil
Marc Methot - Erik Karlsson
Dion Phaneuf - Cody Ceci
Michael Kostka - Chris Wideman
Scratched: Ryan Dzingel.
Injured: Mark Borowiecki (knee), Kyle Turris (ankle), Chris Phillips (back), Clarke MacArthur (concussion), Patrick Wiercioch (undisclosed).
Status report: Both coaches are making minor tweaks to their forward lineups with Puempel replacing Dzingel for the Senators and Matteau in for De La Rose for the Canadiens.
Who's hot: Zibanejad has two goals and two assists in his past three games. Hoffman has a goal and two assists in his past three games. … Galchenyuk has 12 goals in his past 11 games. Pacioretty has a goal and seven assists in his past six games.