Elias Lindholm scored the overtime winner and the Calgary Flames bounced back after blowing a four-goal lead in the third period to beat the Vancouver Canucks 6-5 on Sunday night.

The Canucks and Flames have already been eliminated from playoff contention and face each other twice more to end the regular season — despite several postseason matchups already underway. The overlap is due to the COVID-19 outbreak that swept through Vancouver’s team and halted the Canucks' schedule for three weeks.

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Calgary Flames' Milan Lucic (17) falls over Vancouver Canucks' Jalen Chatfield, bottom left, as he takes a shot on goalie Braden Holtby (49) during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Elias Lindholm scored the overtime winner and the Calgary Flames bounced back after blowing a four-goal lead in the third period to beat the Vancouver Canucks 6-5 on Sunday night.

The puck deflects off the crossbar behind Calgary Flames goalie Jacob Markstrom, of Sweden, and stays out of the goal during overtime of an NHL hockey game against the Vancouver Canucks, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Brock Boeser had two goals and Travis Hamonic, Tyler Graovac, and J.T. Miller scored for Vancouver, which had four goals in the third period to force overtime. Quinn Hughes assisted on three goals, Miller added two helpers and Braden Holtby stopped 30 shots in defeat.

Vancouver Canucks' Brock Boeser (6) celebrates after scoring a goal against the Calgary Flames during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Boeser nearly won it for the Canucks in OT when his shot rang off the post. Lindholm ended the game moments later when his centering pass in front went off Edler and in at 3:24.

Calgary Flames' Milan Lucic, left, falls over Vancouver Canucks' Jalen Chatfield, center, after taking a shot on goalie Braden Holtby (49) during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Calgary Flames' Mikael Backlund (11), of Sweden, and Vancouver Canucks' Matthew Highmore (15) vie for the puck during the first period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Calgary Flames' Mikael Backlund (11), of Sweden, and Vancouver Canucks' Matthew Highmore (15) vie for the puck during the first period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Calgary Flames' Mikael Backlund (11), of Sweden, deflects the puck wide of the goal behind Vancouver Canucks goalie Braden Holtby (49) as Alexander Edler (23), of Sweden, defends during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Calgary Flames' Mikael Backlund (11), of Sweden, deflects the puck wide of the goal behind Vancouver Canucks goalie Braden Holtby (49) as Alexander Edler (23), of Sweden, defends during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Vancouver Canucks goalie Braden Holtby (49) stops Calgary Flames' Dillon Dube, right, during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Vancouver Canucks goalie Braden Holtby (49) stops Calgary Flames' Dillon Dube, right, during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Vancouver Canucks' Quinn Hughes (43) and Calgary Flames' Dillon Dube (29) vie for the puck during overtime of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Vancouver Canucks' Quinn Hughes (43) and Calgary Flames' Dillon Dube (29) vie for the puck during overtime of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Andrew Mangiapane scored twice and Josh Leivo, Milan Lucic and Matthew Tkachuk also had goals in regulation for Calgary. Jacob Markstrom made 30 saves for his 21st win.

Calgary Flames' Milan Lucic (17) falls over Vancouver Canucks' Jalen Chatfield, bottom left, as he takes a shot on goalie Braden Holtby (49) during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Calgary Flames' Milan Lucic (17) falls over Vancouver Canucks' Jalen Chatfield, bottom left, as he takes a shot on goalie Braden Holtby (49) during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Brock Boeser had two goals and Travis Hamonic, Tyler Graovac, and J.T. Miller scored for Vancouver, which had four goals in the third period to force overtime. Quinn Hughes assisted on three goals, Miller added two helpers and Braden Holtby stopped 30 shots in defeat.

Down 5-1, Vancouver scored back-to-back power-play goals, with Graovac getting the first at 2:30 before Boeser made it 5-3 at 7:47.

Miller brought the Canucks within one with a short-handed goal at 11:28. Boeser tied it with 2:02 left in regulation by tipping Alexander Edler’s shot from the point.

The puck deflects off the crossbar behind Calgary Flames goalie Jacob Markstrom, of Sweden, and stays out of the goal during overtime of an NHL hockey game against the Vancouver Canucks, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

The puck deflects off the crossbar behind Calgary Flames goalie Jacob Markstrom, of Sweden, and stays out of the goal during overtime of an NHL hockey game against the Vancouver Canucks, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Boeser nearly won it for the Canucks in OT when his shot rang off the post. Lindholm ended the game moments later when his centering pass in front went off Edler and in at 3:24.

The Flames improved to 6-2 against the Canucks this season. The teams play again Tuesday in Vancouver and Wednesday in Calgary.

NOTES: Canucks captain Bo Horvat played in his 500th NHL game. ... Calgary’s Adam Ruzicka made his NHL debut. ... Johnny Gaudreau has points in 10 of his last 11 games.

Vancouver Canucks' Brock Boeser (6) celebrates after scoring a goal against the Calgary Flames during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Vancouver Canucks' Brock Boeser (6) celebrates after scoring a goal against the Calgary Flames during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

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Calgary Flames' Milan Lucic, left, falls over Vancouver Canucks' Jalen Chatfield, center, after taking a shot on goalie Braden Holtby (49) during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Calgary Flames' Milan Lucic, left, falls over Vancouver Canucks' Jalen Chatfield, center, after taking a shot on goalie Braden Holtby (49) during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Calgary Flames' Mikael Backlund (11), of Sweden, and Vancouver Canucks' Matthew Highmore (15) vie for the puck during the first period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Calgary Flames' Mikael Backlund (11), of Sweden, and Vancouver Canucks' Matthew Highmore (15) vie for the puck during the first period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Calgary Flames' Mikael Backlund (11), of Sweden, deflects the puck wide of the goal behind Vancouver Canucks goalie Braden Holtby (49) as Alexander Edler (23), of Sweden, defends during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Calgary Flames' Mikael Backlund (11), of Sweden, deflects the puck wide of the goal behind Vancouver Canucks goalie Braden Holtby (49) as Alexander Edler (23), of Sweden, defends during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Vancouver Canucks goalie Braden Holtby (49) stops Calgary Flames' Dillon Dube, right, during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Vancouver Canucks goalie Braden Holtby (49) stops Calgary Flames' Dillon Dube, right, during the third period of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Vancouver Canucks' Quinn Hughes (43) and Calgary Flames' Dillon Dube (29) vie for the puck during overtime of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)

Vancouver Canucks' Quinn Hughes (43) and Calgary Flames' Dillon Dube (29) vie for the puck during overtime of an NHL hockey game, Sunday, May 16, 2021, in Vancouver, British Columbia. (Darryl DyckThe Canadian Press via AP)