Ottawa, ON (SportsNetwork.com) - Montreal Canadiens defenseman Nathan Beaulieu will miss the remainder of the first-round playoff series against Ottawa because of an upper body injury.

Beaulieu sat out the third period and overtime of Game 3 on Sunday because of the injury. He could miss just one game, if the Canadiens can finish a sweep of the Senators in Game 4 on Wednesday.

Canadiens coach Michel Therrien on Tuesday said Greg Pateryn would replace Beaulieu in the lineup for Wednesday's game.

Beaulieu has one assist in three games this postseason after notching a goal with eight assists in 64 games during the regular season.