BOSTON – The Bruins battled and showed they could hang with the Capitals for 60 minutes, but once again they lost to their tormenters in Washington.

A Matti Niskanen screaming slap shot from the point eluded Tuukka Rask, and the Bruins fell to the Capitals for the sixth consecutive time by a 2-1 score in overtime at TD Garden. With the loss, the B’s have now been swept by the Capitals in back-to-back season series, the first time Washington has done that to Boston in the history of the two franchises playing each other.

The Bruins started off strongly in the first period with a shift where the Black and Gold had a lot of things going right for them. Kevan Miller stopped a puck at the blue line to keep possession in the offensive zone, and that led to Brad Marchand, with Nate Schmidt draped all over him defensively, flipping a sweet dish to Patrice Bergeron cutting to net for his 26th goal of the season.

It appeared the Bruins had doubled their lead in the second period Torey Krug snapped home a loose puck past Philipp Grubauer, but a Barry Trotz coach’s challenge got the play overturned when Loui Eriksson was offside. Then Alex Ovechkin drilled Kevan Miller from behind with a boarding hit that earned the Capitals star a five minute major, and forced Miller out of the game while clutching his right shoulder and neck area.

The Bruins earned a five minute major when Tom Wilson went off for interference, but couldn’t cash in on extended 5-on-3 power play time while both Ryan Spooner and Bergeron hit posts amid some good Grubauer saves. Eventually the Capitals tied it up with a Nicklas Backstrom feed to Karl Alzner in front of the net, and the Bruins had frittered away their chances to put away a juggernaut Washington squad earlier in the game.