04/22/2015 13:49 EDT | Updated 06/22/2015 01:12 EDT

After improbable run to make the playoffs, Sens face elimination against Habs

OTTAWA - For weeks the Ottawa Senators have played every game as if it was their last. Now they truly face that reality.Down 3-0 to the Canadiens in their Eastern Conference quarter-final series, the Senators know it's now or never when they host Montreal in Game 4 on Wednesday night."If we lose a game now our season is over," said Senators captain Erik Karlsson. "It feels like we've been playing games like this for a while now."We need to find a way to win one game."After pondering a goalie change on Tuesday, Senators coach Dave Cameron confirmed Craig Anderson will get the start for Game 4."I don't make any decision lightly," Cameron said. "A lot of thought goes into everything. He has a proven playoff record of being a real good goalie."The Senators went on an improbable run at the end of the season just to make the playoffs, and need the same focus for Wednesday's game."For us we have to treat it as another game," Anderson said. "If you put too much pressure on it, it can go in the wrong direction for you. I think we have to focus on one period at a time, one shift at a time and not really think too much about the consequences and at the end of the day leave everything on the table and see what happens."In many ways the Canadiens are dealing with the same pressure. Ultimately they want to wrap up this series and not allow the Senators to gain any momentum."We're extremely focused for this game, we want to end the series tonight," said Montreal's Dale Weise. "We don't want to give them any kind of life. It's a scary thing when you give a team a life."Ottawa has scored the opening goal in each of the first three games and will look to improve on what has been disastrous second periods."Let's play the first period three times," was Cameron's message to his team.Canadiens coach Michel Therrien knows elimination games come with numerous cliches, but admitted they can't be avoided."This is going to be the toughest game....We have to have the same mindset of the opponent."Greg Pateryn will make his NHL playoff debut in place of the injured Nathan Beaulieu. The 24-year-old is expected to bring a physical presence to the blue-line, but knows he needs to play smart."I don't think guys need to tell you," said Pateryn. "It's pretty obvious the way things have been going."There's a fine line between that, but you can't be hesitant in anything. You have to play within yourself and not let your emotions get to you."The Senators are 2-13 when facing elimination, while the Canadiens are 32-0 when leading a series 3-0 and have swept a series 22 times.Notes: Weise and Senators centre Zack Smith spent three years together in Swift Current and are close friends, but Weise said that gets put aside at the drop of the puck. Smith will be in the Ottawa lineup in place of David Legwand. ... Right winger Mark Stone said he's getting a little more mobility in his wrist as the series progresses. He was injured in Game 1.