Graham Hughes / AP

Montreal players celebrate a goal against Washington on Wednesday. The Canadiens went on to win 6-5 in overtime.

Lapierre beat Theodore with a shot from the slot shortly after the ensuing faceoff to put Montreal up 4-2 at 12:57.

Ovechkin had a goal waved off 14:10 into the second. Ovechkin crashed the crease and knocked Montreal defenseman Hal Gill into Price as the puck slid into the net after the Montreal goalie made a huge glove save on Mike Knuble’s shot.

“I don’t want to comment but I think it’s a clear goal,” Ovechkin said.

Initially ruled a goal, the on-ice officials huddled in front the timekeeper’s bench before reversing their decision, waving off the goal.

“If they would have called it no goal, I would have accepted it, but they called it a goal on the ice,” Boudreau said.

Plekanec increased the Canadiens’ lead to 5-2 when he scored his 16th goal with 1:04 remaining in the second.

Green drew Washington to 5-3 with a power-play goal 16 seconds into the third, beating Price with a wrist shot from the point 3 seconds after Plekanec was sent off for slashing.

Laich, who scored 6:23 into the first to tie it at 1, got his second of the game — his 19th goal — at 9:02.

Canadiens defenseman Josh Gorges was struck on the left side of his head by Green’s slap shot with 10.9 seconds left in the first. Gorges lay face down on the ice for several moments before he was able to sit up and make his way to the dressing room with the help of athletic therapist Graham Rynbend. Gorges did not return.

“That was scary,” Green said.

Notes: Canadiens C David Desharnais recorded his first NHL point with an assist on Metropolit’s goal. ... Pyatt, who assisted on Gomez’s goal 36 seconds in, scored 41 seconds into the second for his first career goal.

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