John Tavares recorded his first NHL hat trick on Saturday night, but Radek Dvorak made sure the celebration was short-lived.

Dvorak scored the game-winner with 6:32 left in the third period as the Florida Panthers edged the New York Islanders 4-3 at the BankAtlantic Center. The loss snapped the Isles' three-game winning streak and marked just their second regulation loss of the season (4-2-2).

"It doesn't mean a lot. We didn't get the two points," Tavares said of his performance. "We just have to keep moving forward and get a little sharper."

Mike Weaver, Steve Bernier and David Booth also scored goals for the Panthers, while Tomas Vokoun made 30 saves and improved to 5-0-1 in his last six starts against the Islanders.

Florida went ahead for good on when Bryan McCabe's shot from above the right circle bounced off Rick DiPietro's right leg and out to Dvorak. His snap shot from the left circle went past DiPietro on the glove side.

"I was thinking to myself, 'just hit the net,'" Dvorak said. "It was a wide-open net, but sometimes the goalie can make an unbelievable save. I guess I was quicker, and the puck went in. It was a great relief."

DiPietro, who won at Tampa Bay on Thursday night, finished with 26 saves.

The Islanders tied it 3-3 with 1:07 left in the second on Tavares' third goal of the game. Blake Comeau took a shot from the right circle that was blocked. Tavares got the loose puck and slid it into an open net past Vokoun, giving Tavares his fifth goal of the season.

Florida took a 3-2 lead on Booth's odd goal in the second. DiPietro blocked a shot by Weaver, but the puck slowly slid under his legs. Booth was able to get his blade on the puck in the crease behind DiPietro and push it in just before the net came off its moorings at 15:57.

"There were some crazy bounces around the net," DiPietro said. "It was tough to get control of the rebounds."

The Panthers took a 2-1 lead midway through the first. Dennis Wideman passed from above the right circle across the ice to Bernier. The puck deflected off Mark Eaton's stick, but Bernier got to the puck and fired it past DiPietro. The Islanders tied it 2-2 on Tavares' second power-play goal. James Wisniewski's shot was deflected, but Tavares picked up the loose puck and poked it in at 8:01.

Florida took a 1-0 lead at 4:58 of the first on Weaver's first of the season. His shot from the top of the right circle got past DiPietro on the glove side. The Islanders tied it at 1 on a power-play goal by Tavares. Wisniewski's shot from the point was blocked. Tavares grabbed the rebound and pushed in the puck at 9:25.

"High marks to the Islanders," Panthers coach Peter DeBoer said. "They kept coming back every time we'd get a one-goal lead. They hung around and hung around. For us, it was nice to get the win."

Before the game, the Panthers paid tribute to Bill Torrey, the team's first president, by raising a commemorative banner to the rafters with his name and the number 93 for the Panthers' first year. Torrey served as president from 1993-2002 and is still an alternate governor for the team. Torrey, a Hall of Famer, was also the first general manager of the Islanders and built the team that won four consecutive Stanley Cups in the early 1980s.

Canadiens 3, Senators 0 | HIGHLIGHTS

It had been almost two years since Carey Price recorded a shutout, but the Montreal goalie stopped all 19 shots he faced and Andrei Kostitsyn scored twice in a win at Ottawa.

Price, who has started each of Montreal's seven games, has five career shutouts. It was his first in 90 games since Nov. 11, 2008, when he stopped 28 shots in a 4-0 win over the Sens.

"It was awesome ... it's just secondary, though," Price said. "We all wanted to come in and get the win, that's the biggest thing."

Kostitsyn opened the scoring in the first and added his second goal of the game late in the second to put Montreal up by three. Benoit Pouliot also scored in the second for the Canadiens, 4-1-1 since losing their season opener in Toronto.

Brian Elliott stopped 31 shots for Ottawa (2-5-1), which won 4-2 in Buffalo on Friday. Sens center Jason Spezza missed his second straight game because of a groin injury.

"It feels terrible to have an effort like this at home coming off a big win," Ottawa captain Daniel Alfredsson said.

Tomas Plekanec played his 400th game for Montreal. He had an assist on Kostitsyn's first goal of the game 10:54 in as the Canadiens held an early 7-0 advantage in shots.

Price made a nifty glove save on Chris Kelly's backhander moments after the Senators had a potential tying goal disallowed at 13:27. Referee Kevin Pollock pointed to the net, but a video review clearly showed that Nick Foligno kicked the puck into the net with his right skate.

"We looked a little bit tired," Senators coach Cory Clouston said. "We didn't have the jump that we had last night and they came hard on us and our defense couldn't handle some of the pressure at times."

The Canadiens, 0-for-3 with the man advantage, made it 2-0 on Pouliot's first of the season 13:42 into the second. Montreal is 1-for-23 on the power play this season. Kostitsyn increased the lead to three with his second of the game and fourth of the season with 1:23 left.

"Our team play was awesome tonight," Price said. "That's one of the best team games I think I've played behind in a while. They shut 'em down. It was a really good team effort out there."

Flyers 5, Maple Leafs 2 | HIGHLIGHTS

Mike Richards finally scored and added two assists as Philadelphia cruised past Toronto at the Wells Fargo Center and ended a three-game skid.

Ville Leino, Blair Betts, Scott Hartnell and Danny Briere also scored for the Flyers, who created havoc in the Leafs' zone all night long and outshot Toronto 40-15 while handing the Leafs their third consecutive loss.

"When you're in a situation where you're team is facing that adversity, you need your leaders and top players to step up and have a good game," Flyers coach Peter Laviolette said.

Toronto's Phil Kessel and Clarke MacArthur each scored their sixth goals of the season -- giving them 12 of the Leafs' 20 goals. MacArthur's goal brought the Leafs within one with 1:14 left in the second period.

"Just look at the scoreboard and look at the shots for them and there is not much more to say," Leafs captain Dion Phaneuf said.

The Flyers scored twice in the closing minutes of the first period. Richards began the attack by intercepting Francois Beauchemin's clearing attempt, then fired a shot over Phaneuf's stick and past goalie Jean-Sebastien Giguere. Nearly 2 minutes later, Leino arrived in traffic and trickled a shot into the net.

"I don't think anyone was too worried about (Richards) getting his points," Briere said. "We all knew it was just a matter of time for Mike Richards to turn it on. Sometimes, you need a lucky bounce. We did a lot of good things, and it was good to see some goals go in for us."

Giguere took his first loss of the season after going 3-0-1 with a 1.96 goals-against average in his first four appearances.

"We turned the pucks over in the offensive zone, 2-on-1s, and they buried us in the third period," Leafs coach Ron Wilson said. "It's inexcusable. Some nights on the road you have to bend not break, and they broke us early in the third."

Indeed they did. Hartnell took Richards' cross-ice pass and rifled a one-timer past Giguere at 1:05, and Briere scored off a wrist shot from the faceoff circle to give the Flyers a three-goal advantage.

"It was huge for our defense," Richards said. They've done a great job of getting in the way of shots. I think we played with a lot of desperation tonight. There was a sense in the locker room that everyone wanted to play tonight."

Blues 1, Penguins 0 (OT) | HIGHLIGHTS

Erik Johnson scored 50 seconds into overtime, Jaroslav Halak made 31 saves and St. Louis edged Pittsburgh for its 10th consecutive home victory.

Johnson scored his first goal of the season came after T.J. Oshie stripped Paul Martin of the puck in the corner. Martin fed Johnson in the slot and the defenseman beat goalie Brent Johnson, who lost for the first time in five games this season.

"It was just one of those plays that the forechecking just pinned us down in our zone for a little while," Brent Johnson said. "I think they just moved it down to the guy coming from the top. I went out to challenge and I think it hit our (defenseman) and it went through my legs."

The Blues are 4-0 at home this season after winning their final six last season. They beat Chicago at home on Friday, giving St. Louis victories over the last two Stanley Cup champions on consecutive nights.

"I kind of found my stride offensively in the zone and it's just hopefully a springboard for me and the team," Erik Johnson said. "Hopefully we can put a streak here together and hopefully I can continue to contribute. It feels good to get the monkey off my back.

"I just cycled down the wall and went to the net, called for it from Oshie. He made a great play right on my tape and I just tried to get it through the defender there (Kris Letang) and it found its way through Brent Johnson. It was a great hockey play by Oshie."

Sidney Crosby had a chance in the third period on the Penguins' fourth power play, but his snap shot from the right circle popped off the outside of the goal post with 9:34 left.

"You still need to be aware of their guys because they got skill guys and they can score any time when they get a chance," said Halak, who improved to 4-1-1 on the season. "It's been fun so far, but we've got plenty of games left to keep on the same pace."

Predators 1, Stars 0 | HIGHLIGHTS

Cal O'Reilly scored in the game's first minute and Pekka Rinne made the goal stand up with 30 saves for his 15th NHL shutout as Nashville blanked Dallas at the American Airlines Center.

Nashville came out aggressively and got on the board when O'Reilly tucked a rebound past Stars goalie Kari Lehtonen 42 seconds after the opening faceoff. Rinne did the rest for the Predators, especially in the second period when Dallas held a 13-5 shots advantage.

"We looked at it as a big challenge," Preds coach Barry Trotz said. "We knew we were going to need a big goaltending performance out of Pekka, and we got it."

The Predators (4-0-3) won their first three games and then dropped three consecutive overtime decisions before getting back on track in their second road game of the season.

"We knew (the Stars) had a good offense and a lot of firepower," Rinne said. "The last three games we lost in overtime, so we said this time, we just needed to get mad."

Dallas (5-2-0) had 22 goals in its first six games, the club's best offensive start since netting 23 in the opening six games of the 1996-97 season. But the Stars couldn't get the puck past Rinne in the opener of a season-high, six-game homestand.

Jamie Benn missed an open net on a power play with 2:30 remaining in the second period, and Mike Ribeiro hit the post with a shot with under a minute left in the frame.

"We've won a few games where maybe we shouldn't have," Lehtonen said. "Then this one, we probably should have."

Sabres 6, Devils 1 | HIGHLIGHTS

Buffalo bounced back from a home loss to Ottawa by dominating the Devils. New Jersey played without star forward Ilya Kovalchuk, who was a healthy scratch.

For NHL.com's complete story, click here.

Blue Jackets 3, Blackhawks 2 | HIGHLIGHTS

Columbus spotted the Hawks a 2-0 lead, then got goals from Derick Brassard, R.J. Umberger and Antoine Vermette to stun Chicago at the United Center.

For NHL.com's complete story, click here.

Hurricanes 4, Coyotes 3 (OT) | HIGHLIGHTS

Road-weary Carolina blew a 3-0 lead in the final 15 minutes of regulation, but finished its marathon road trip with a victory when Anton Babchuk scored in overtime.

For NHL.com's complete story, click here.

Sharks 6, Oilers 1 | HIGHLIGHTS

San Jose spotted Edmonton an early shorthanded goal by Jordan Eberle, then ran off six unanswered goals to overpower the young Oilers. San Jose won its second toad game in two nights; the Oilers have dropped four in a row after a 2-0-0 start.

For NHL.com's complete story, click here.

Material from wire services was used in this report