The Islanders have developed a reputation for having a strong defense. With their offensive game starting to click, the team is beginning to build an intimidating identity.

Mathew Barzal had a goal and an assist and the Islanders beat the Flyers 5-3 on Sunday night to extend their winning streak to seven games.

Anders Lee, Derick Brassard, Ross Johnston and Ryan Pulock scored as the Islanders erased an early one-goal deficit. Semyon Varlamov stopped 28 shots in his third straight win.

“We’ve been competing for the last couple of weeks, we play for each other, it’s been a lot of fun,” Brassard said. “Guys are stepping up, we have good goaltending, everything is clicking right now.”

Jakub Voracek, Travis Konecny, Claude Giroux scored for the Flyers, who had a three-game winning streak snapped. Carter Hart made nine saves on 14 shots before being replaced by Brian Elliott midway through the second period.

Voracek scored 1:07 into the game, and the Islanders countered with three straight goals.

Lee hustled and scored on a rebound to even the score at 1-1 at 3:17 of the first. The Islanders captain won a battle behind the net which allowed the Islanders to establish possession, then beat defenseman Travis Sanheim to the side of the net to finish the play. Johnny Boychuk and Barzal assisted on the play.

“He’s our leader,” Casey Cizikas said following this third game back after missing the previous five with a lower-body injury. “When you see him and he plays like that, getting to pucks, taking the body, fight in those dirty areas, you want to follow him. That’s what you want in your captain and he has done a tremendous job at leading us.”

Brassard scored his third in as many games after executing a give-and-go with Brock Nelson 65 seconds after Lee’s goal. Brassard, a natural center, has played left wing the last three games.

Johnston, usually an enforcer, completed the first-period barrage when he finished a feed from Cole Bardeau at 11:46. Bardeau earned his first NHL point on the play and is one of three rookies to make NHL debuts with the Islanders this season, along with Oliver Wahlstrom and Noah Dobson. Wahlstrom, 19, started the play when he forced Sanheim to turn the puck over in the corner alongside the Flyers net.

Before two costly defensive plays from Sanheim, he helped the Flyers take a 1-0 lead when he delivered a cross-ice pass to set up Voracek for his 199th NHL goal.

“It didn’t affect us a lot,” Islanders coach Barry Trotz said of the Flyers early goal. “I thought our minds were in the right place. I don’t think it even fazed us. You got 59 minutes to get it back.”