Islanders defenseman Johnny Boychuk congratulates goalie Chad Johnson after the...

Islanders defenseman Johnny Boychuk congratulates goalie Chad Johnson after the Islanders' 3-2 win against the Boston Bruins in an NHL hockey game in Boston, Thursday, Oct. 23, 2014. Credit: AP / Charles Krupa

John Tavares' line saw plenty of Bruins captain Zdeno Chara in the first half of the first period Thursday night. In fact, Tavares saw the 6-9 Chara up close, as Chara laid him out with a big, clean hit to deny a scoring chance midway through the period.

But that was the last Tavares and the Islanders saw of Chara, who left the game soon after with an undisclosed injury. Down to five defensemen and without their minutes-eating big man, the Bruins were more vulnerable in their own end.

The Islanders took advantage in the second period in what became a 3-2 victory over Boston, with Kyle Okposo scoring off a setup by Tavares 90 seconds into the period to break a 1-1 tie and Cal Clutterbuck scoring off another good cycle 7:57 later.

The game came with a host of hairy moments in the final six minutes, when backup goalie Chad Johnson stood tall and a tired Islanders team, having lost Josh Bailey to a broken hand after a period, managed to hang on.

"I'm proud of our guys. That was a good effort," Jack Capuano said after his team snapped a two-game slide to go to 5-2-0 and held an opponent to fewer than three goals for the first time this season. "Chad made some big saves and we had two really good periods."

Those 40 good minutes were enough.

Johnny Boychuk, welcomed back to Boston with chants, cheers and a video tribute, appeared to get the Islanders on the board 2:38 in, but Anders Lee was whistled for interference around the Boston net.

The Islanders took a 1-0 lead at 6:21 as Bailey poked a loose puck off Dougie Hamilton's skates and toward the goal line, where Frans Nielsen swept it past Niklas Svedberg.

Milan Lucic tied it with 1:39 left in the first, but that period belonged to the Islanders territorially and psychologically. They were the faster, more aggressive and better team, big statements given that this is the home of the perennially high-achieving Bruins.

"In this building, against that team, we felt good about the first two," Clutterbuck said.

Johnson, making his first start against his former team, said he felt more nerves than he had since his first NHL appearance. A rebound stop on Reilly Smith during an early Bruins power play helped get him focused. He got his right arm on Smith's wired shot and the puck went off the crossbar and out of play, leaving Smith bewildered as to how the puck stayed out.

"I was definitely in the game right away," said Johnson, who had 30 saves. His teammates blocked another 19 attempts.

Chris Kelly cut the Isles' lead to 3-2 with 10:11 to go and the Bruins poured on the pressure, keeping the Islanders penned in their own zone for minutes at a time. But one last clear by Okposo with seconds to go sealed a reasonably impressive win.

"You know they're going to make a push and I thought we made a few soft plays down the stretch," Capuano said. "We had some fatigue set in, but we held up. It's a different mentality than last season, that's for sure."

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