MONTREAL — Mike Hoffman scored twice, including in overtime, as the Ottawa Senators defeated the Montreal Canadiens 4-3 in the third pre-season game for both teams on Thursday night.

Hoffman scored 19 seconds into the extra period, going top shelf on Mike Condon after bad giveaway by Alex Galchenyuk deep in his own zone.

Matt Puempel and Bobby Ryan scored for Ottawa (2-0-1) in regulation time.

Chris Driedger stopped 18-of-21 shots before being replaced midway through the second period by Matt O'Connor, who stopped all 19 shots he faced in relief.

Michael McCarron, Brendan Gallagher and Zach Redmond scored for Montreal (1-1-1) while Condon made 16 saves on 20 shots.

Max Pacioretty made his first appearance of the year for Montreal after missing the team's first two pre-season games. The Habs captain finished the night with one assist and six shots on goal.

The Senators didn't get many shots on target in the first period but when they did, they made them count.

Ottawa scored on its first two shots of the game. The visitors had a total three shots in the opening 20 minutes, but that didn't stop them from taking a 2-1 lead to the dressing room.

Montreal's Condon, making his second start of the pre-season, was hardly to blame for either goal.

On the first, at 1:41, Puempel was left all alone in front of the net after Habs defenceman Redmond whiffed on a bouncing puck in the slot.

Redmond later made up for the mistake, scoring his second of the pre-season at the halfway point of the second period.

On Ottawa's second shot of the game, at 7:07 of the first, Ryan found himself all alone at the side of the net after a fake shot-turned-pass by Derick Brassard fooled Montreal's defence.

The Canadiens outshot the Senators 40-19 in regulation time.

Gallagher made it 2-2 at 5:24 of the second period before Hoffman restored Ottawa's one-goal lead two minutes later on the Senators' eighth shot of the game.

This year's first-round draft pick for Montreal, Mikhail Sergachev, made his first appearance in a Canadiens uniform. Sergachev got an assist on Gallagher's goal and finished the night with one point and five hits.

The Habs were a little unlucky throughout the match, hitting two posts and a crossbar.

McCarron got Montreal on the board at 2:22 of the first period, 41 seconds after Ottawa scored the opener. The six-foot-six centre streaked down the wing then went backhand to forehand to beat Driedger five-hole.

Notes: The teams combined for 30 penalty minutes. … The Habs get a chance at revenge when the two clubs meet again in pre-season action on Saturday in Ottawa.