Washington Capitals' Alex Ovechkin (8), of Russia, hits the puck...

Washington Capitals' Alex Ovechkin (8), of Russia, hits the puck and scores against New York Islanders goaltender Nathan Lawson (52) and Islanders' Jack Hillen (38) during overtime. (March 1, 2011) Credit: AP

WASHINGTON - The Islanders shut down superstar Alex Ovechkin for most of regulation but with the game on his stick in overtime, he refused to be ignored.

Less than two minutes into overtime, No. 8 went end to end, careening past the Islanders before burying a beautiful backhand shot with flourish for a come-from-behind 2-1 win at Verizon Center last night.

With only 47.1 seconds on the clock, the Islanders saw a 1-0 lead evaporate when Brooks Laich's goal tied the score at 1.

Ovechkin's league-leading ninth game-winner - 25th of the season - sealed the Capitals' four-game season sweep of the Islanders and spoiled an otherwise tremendous night for backup goalie Nathan Lawson.

"It's extremely disappointing to lose it in that last 47 seconds. We battled so hard for 59 minutes. To come away with just one point is unacceptable," said Lawson, who made 40 saves.

It was literally two rookie mistakes that led to the Islanders' fourth straight loss.

Standout rookie Michael Grabner bungled an opportunity to clear the puck along the boards before Laich's equalizer and rookie defenseman Travis Hamonic got beat trying to make a play along the wall on Ovechkin's winner.

Both took full accountability for their gaffes.

"I misread where the guy was going and I tried to protect the puck," Grabner said. "I should have gotten it out."

Said Hamonic: "I was trying to keep the puck down low. I had one of their defensemen on my back. I heard one of our defenseman calling for the puck. I just tried to protect the puck a little bit and he just picked my pocket. He shot up the wall, chipped it to himself and went down the ice and scored on a nice move."

After letting up five goals in his last start, against Boston on Feb. 17, Lawson was brilliant for much of the game.

He began his night with clutch stops on recent Capitals acquisitions Marco Sturm and Jason Arnott in the opening minutes. He denied Nicklas Backstrom and Ovechkin on successive sharp-angle shots in the third. But Lawson's most breathtaking save came when he robbed Jason Chimera in the second. Lawson made a spectacular diving stop against Chimera's slick backhander at 7:03.

"To stop 40 shots against this lineup, in front of a packed house on the road? It's disappointing for him for sure," coach Jack Capuano said.

Despite being outshot 17-6 in the second period, Matt Moulson's 28th goal of the season gave the Islanders a 1-0 lead.

Capitals defenseman John Carlson's turnover at the blue line led to a two-on-one rush for the Islanders and Moulson converted P.A. Parenteau's feed at 10:08.

Moulson, who led the team with 30 goals last season, is two shy of reaching that milestone with 18 games left. He has 11 goals since the All-Star break.

Nursing a 1-0 lead in the third, the Islanders had two power-play opportunities but failed to add an insurance goal. The Capitals have killed all eight power plays in the last two meetings.

"A power-play goal, that would've been the difference in the game," Capuano said.

Ovechkin said of his game-winner: "It was kind of a pretty goal. I'll take it."

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