OTTAWA -- The Ottawa Senators' stars are more focused on the win column than the score sheet.
Jason Spezza scored a power-play goal for his 300th NHL point and Dany Heatley had two assists to reach 50 points this season, leading Ottawa to a 5-2 win over the New York Islanders on Thursday.
Spezza collected a souvenir for his father after he earned his milestone point in his 277th regular-season game with his 13th goal of the season during the Senators' 5-on-3 advantage 1:01 into the second.
"I made sure I got the puck for him," Spezza said. "It's obviously something that's important, but it's not that important. It's just one of those things you want to get out of the way."
Daniel Alfredsson scored his 22nd goal and Martin Gerber made 24 saves, extending his and the Senators' winning streaks to three.
"The bottom line is we're back to playing well," said Heatley, who had 50-goal and 100-point seasons in his first two years with Ottawa. "I thought we played pretty solid tonight. Three in a row, you know, that's the most important thing."
Antoine Vermette, Nick Foligno and Mike Fisher also scored for the Senators, who have won nine of 11 (9-1-1).
Bill Guerin scored twice for New York, ruining Gerber's shutout bid 8:13 into the third. He added his team-leading 12th of the season at 15:39.
New York was without No. 1 goalie Rick DiPietro, who sprained his left knee Wednesday night in warmups and then played only one period in the Islanders' 4-3 overtime victory against Toronto. He is day to day and might return Saturday at home against New Jersey.
"We're looking forward to getting him back, but it's one of those situations where it gives another guy an opportunity to step up," Islanders center Mike Sillinger said.
Wade Dubielewicz, the Islanders' rarely used backup, made 32 saves in just his third start of the season. New York had a three-game winning streak snapped.
Dubielewicz, 2-3 overall in six appearances, fell to 0-3 as a starter one night after replacing DiPietro to start the second period. He earned his second relief victory of the season in that one.
"I think he understands the position he's in," Guerin said. "Ricky's going to play 95 percent of the games and that's just where it is but he came in last night and played great for us. He came in tonight and played really solid for us, so we have to be as good in front of Dubie as we are in front of Ricky, and as confident.
"We have to show Dubie that we're willing to play as hard in front of him."
Gerber improved to 19-5-1 as he made another start over Ray Emery.
Emery stopped the only shot he faced during a shared shutout with Gerber on Dec. 12 before leaving that game five minutes in with a hip injury. He has started only one of Ottawa's eight games since.
"I think we have a good relationship - it's got nothing to do with us personally," said Gerber, who didn't play in Ottawa's 20 playoff games while backing up Emery last season. "Both guys want to play and that's the way it is. One guy's not playing, it doesn't matter who it is, you're not happy about it but on the other hand you just try to work as hard as possible and try to be patient. It's a tough situation, but that's the way it is right now."
Spezza added his 301st point 1:43 after he opened the scoring early in the second when he set up Alfredsson's 22nd goal.
"He's had a great start to his career, obviously, and he's one of those players that's regarded as one of the best players in the league right now, and I think he's only going to get better so we're happy to have him here," Alfredsson said.
Heatley recorded his second straight assist when Ottawa took a 2-0 lead 2:44 into the second.
Vermette made it 3-0 with seven seconds remaining in the period when he scored a short-handed goal, his eighth tally of the season.
Guerin drew New York within 3-1 when he beat Gerber with a 35-foot wrist shot.
Foligno batted a puck into the net at 10:25 to restore the Senators' three-goal lead on a play that was confirmed by a video review.
Fisher made it 5-1 with his 11th goal at 11:10, but Guerin cut New York's deficit back to three when his slap shot from the right side beat Gerber at 15:39.
Dubielewicz has allowed 17 goals in his three starts, while the Islanders have only scored three over that span. ... Senators C Cody Bass assisted on Foligno's goal for his first NHL point in six games.