After Ottawa's Daniel Alfredsson and Vancouver's Todd Bertuzzi traded goals in the second round of the shootout, Canucks goalie Alex Auld stopped Jason Spezza and Mike Fischer, setting the stage for Sedin.
"It was a little bit open down there," said Sedin, who cut in from right to left before snapping the shot. "I knew I was going to shoot so I hoped to fake him and go for it."
"It's pretty easy to get up for this game, we played the best team in the league," said Daniel Sedin, who also assisted on his identical twin brother's goal.
Despite combining for 21 power plays that at times took the flow out of the game, the fast-skating, offense-first teams provided plenty of end-to-end action and playoff-style intensity in front of the net.
"It was a playoff atmosphere right to the bitter end," Naslund said.
It would have ended long before the shootout if not for Hasek.
On a night when his team was short-handed 13 times, the 40-year-old goalie was the biggest reason Ottawa even got a point.
Vancouver outshot the Senators 37-21 in regulation, but after giving up Naslund's goal 1:07 in, Ottawa killed off the next 12 power plays, including a pair of 5-on-3 advantages and 1:07 of 4-on-3 to start overtime.
Hasek robbed Brendan Morrison in each period, stuffing him on a 2-on-1 in the first, coming out of nowhere to get his stick in front of an empty net in the second, and throwing up a glove to steal one in the third.
"He was the best player in the game," Ottawa coach Bryan Murray said of Hasek.
Hasek was shaken up after a hard collision with Bertuzzi while diving out to prevent a breakaway with five minutes left, but stayed in the game and killed off the second two-man advantage with a big glove save off Naslund.
Hasek stopped Naslund again in the first round of the shootout, and Ryan Kesler with the game on the line in the third round, but Bertuzzi's backhander trickled through his legs to give Daniel Sedin a chance to win it.
Despite his strong play, Hasek was upset about the two early goals, especially Henrik Sedin's, which came on a broken play after Hasek collided with Daniel Sedin in a race for the puck between the faceoff circles. With Hasek out of the play, Henrik Sedin picked up the loose puck and shot it through defenseman Chris Phillips.
"I was skating for the puck and all of a sudden my stick was behind me so what I could do? I made a slide and they scored the goal," Hasek said. "It was a bad goal. First goal, bad goal. I was very disappointed in myself 10 minutes into the game, but the next 55 minutes I played pretty well."
Vancouver also became just the second team this season to keep Ottawa s top line of Dany Heatley, Spezza and Alfredsson off the scoresheet. Heatley and Spezza also failed to score in the shootout against Auld, who finished with 22 saves.
"I knew Heatley and Fischer are good shooters and kind of figured Spezza might deke," said Auld, who watched Heatley shoot high, and got his left pad on Spezza's deke.
Naslund opened the scoring, whipping a wrist shot from the left faceoff circle past Hasek s blocker on the far side, but the Senators tied it on the Canucks' next power play just over 2 minutes later.
Schaefer, a former Vancouver player who was traded to the Senators after holding out the entire 2001-02 season, beat Auld with a low shot on a short-handed 2-on-1.
Meszaros tied it when his harmless looking point shot that was headed wide, but bounced in off Canucks defenseman Bryan Allen at the side of the net. It was the first NHL goal for Meszaros, a 20-year-old defenseman who played junior hockey in Vancouver during the NHL lockout last season.
"It's nice to get that first one, and it got us a point, but we lost the game," Meszaros said.
- It was Vancouver s 100th consecutive sellout at GM Place dating to Nov. 14, 2002.
- Naslund played despite leaving practice early Wednesday and skipping it Thursday to rest a nagging groin injury.
- Senators D Wade Redden missed his seventh straight game with a knee sprain, but has resumed skating and could play Saturday night in Calgary.