Brady Tkachuk scored at 3:30 of overtime to give the Ottawa Senators a 3-2 victory over the Montreal Canadiens on Sunday night.

Drake Batherson and Josh Norris also scored, and Matt Murray made 30 saves. The Senators are last in the NHL at 5-14-1.

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Ottawa Senators goaltender Matt Murray beats Montreal Canadiens defenseman Joel Edmundson (44) to the puck during the second period of an NHL hockey game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Brady Tkachuk scored at 3:30 of overtime to give the Ottawa Senators a 3-2 victory over the Montreal Canadiens on Sunday night.

Montreal Canadiens goaltender Jake Allen makes a save against the Ottawa Senators during the second period of an NHL hockey game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Jake Allen made 36 saves for the Canadiens, coming off a 5-3 home loss to NHL-leading Toronto on Saturday night.

Montreal Canadiens right wing Brendan Gallagher (11) stick handles the puck behind Ottawa Senators goaltender Matt Murray and Senators defenceman Nikita Zaitsev (22) during the first period of an NHL game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Ottawa regained the lead early in the third. Defenseman Nikita Zaitsev fired a shot that deflected off Norris’ stick. The puck then hit Allen’s stick before flying over the netminder.

Ottawa Senators right wing Connor Brown (28) watches the puck bounce across the crease behind Montreal Canadiens goaltender Jake Allen as he falls to the ice during the first period of an NHL game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Ottawa Senators right wing Connor Brown (28) watches the puck bounce across the crease behind Montreal Canadiens goaltender Jake Allen as he falls to the ice during the first period of an NHL game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Ottawa Senators defenseman Nikita Zaitsev (22) and Montreal Canadiens left wing Paul Byron (41) collide along the boards during the second period of an NHL hockey game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Ottawa Senators defenseman Nikita Zaitsev (22) and Montreal Canadiens left wing Paul Byron (41) collide along the boards during the second period of an NHL hockey game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Corey Perry and Nick Suzuki scored for Montreal, with Perry tying it at 2 with 5:35 left in the third period.

Ottawa Senators goaltender Matt Murray beats Montreal Canadiens defenseman Joel Edmundson (44) to the puck during the second period of an NHL hockey game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Ottawa Senators goaltender Matt Murray beats Montreal Canadiens defenseman Joel Edmundson (44) to the puck during the second period of an NHL hockey game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Jake Allen made 36 saves for the Canadiens, coming off a 5-3 home loss to NHL-leading Toronto on Saturday night.

Suzuki opened the scoring 1:17 into the game, wiring a shot off the post and in the net past Murray.

Batherson tied it midway through the first. As the forward drove to the net, he toe-dragged the puck before falling to the ice. As he fell, the puck lightly floated over Allen’s shoulder.

Montreal Canadiens goaltender Jake Allen makes a save against the Ottawa Senators during the second period of an NHL hockey game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Montreal Canadiens goaltender Jake Allen makes a save against the Ottawa Senators during the second period of an NHL hockey game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Ottawa regained the lead early in the third. Defenseman Nikita Zaitsev fired a shot that deflected off Norris’ stick. The puck then hit Allen’s stick before flying over the netminder.

Perry forced overtime, blowing past defenseman Erik Gudbranson along the wing, driving to the net and putting the puck under Murray’s left skate.

Montreal Canadiens right wing Brendan Gallagher (11) stick handles the puck behind Ottawa Senators goaltender Matt Murray and Senators defenceman Nikita Zaitsev (22) during the first period of an NHL game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Montreal Canadiens right wing Brendan Gallagher (11) stick handles the puck behind Ottawa Senators goaltender Matt Murray and Senators defenceman Nikita Zaitsev (22) during the first period of an NHL game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Ottawa Senators right wing Connor Brown (28) watches the puck bounce across the crease behind Montreal Canadiens goaltender Jake Allen as he falls to the ice during the first period of an NHL game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Ottawa Senators right wing Connor Brown (28) watches the puck bounce across the crease behind Montreal Canadiens goaltender Jake Allen as he falls to the ice during the first period of an NHL game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Ottawa Senators defenseman Nikita Zaitsev (22) and Montreal Canadiens left wing Paul Byron (41) collide along the boards during the second period of an NHL hockey game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)

Ottawa Senators defenseman Nikita Zaitsev (22) and Montreal Canadiens left wing Paul Byron (41) collide along the boards during the second period of an NHL hockey game Sunday, Feb. 21, 2021, in Ottawa, Ontario. (Adrian WyldThe Canadian Press via AP)