Desharnais was in the lineup for the second game in a row in Sunday's 5-4 overtime win over the Red Wings.
Desharnais logged an assist in Saturday's 4-3 win over the Penguins.
Desharnais signed a two-year, $4 million contract with Vancouver on Monday.
Desharnais notched two assists, two hits and a plus-2 rating in Saturday's 6-1 win over the Ducks.
Desharnais (undisclosed) told reporters he would be in the lineup against Montreal on Tuesday, stating "I'm good. I'm ready to go," per Daniel Nugent-Bowman of The Athletic.
Desharnais (undisclosed) figures to be a game-time decision versus Montreal on Tuesday after head coach Kris Knoblauch told reporters, "He looked good. Said he felt good. We will talk to the trainers and see," per Jason Gregor of Sports 1440 Edmonton.
Desharnais notched an assist and three hits in Monday's 6-3 win over the Coyotes.
Desharnais notched an assist in Saturday's 3-1 win over the Flames.
Desharnais posted an assist and two hits in Tuesday's 5-2 win over the Flyers.
Desharnais posted an assist and went plus-2 in Friday's 5-0 win over the Capitals.