Lack of discipline by the Capitals led to a pair of five-on-three goals by the Bruins in the third period.
Donald Brashear was called for six minutes of penalties (high-sticking double minor, roughing), then was followed into the box by John Erskine (hooking), leading to Zdeno Chara's game-tying goal.
Then with Brashear still in the box, Tom Poti was called for slashing. David Krejci, the target of Brashear's high stick (busted lip), set up Marco Sturm for the game-winner.
"We needed the victory," said Shawn Thornton, who threw down with Brashear in the first period. "It was more for us than anything else. It wans't for the standings or what else is going on in the league. It's more for the guys in this room."
* Alex Auld stopped 23 shots, allowing only one goal for his second straight start. Auld deserves another start tomorrow against the Rangers, as opposed to more losing when Thomas is in net.
* Zdeno Chara was awarded the hard hat by Tim Thomas, its previous owner. Chara is questionable for tomorrow's game.
* Character effort by Shane Hnidy, who didn't respond to Brashear's sucker punch. Hnidy also laid out Alex Ovechkin in the first period. "Frustration can get the best of players and I was just happy that our team was able to capitalize on it," said Hnidy.
* Krejci required stitches to his lip.
* The Bruins will play the Rangers tomorrow at 3 p.m. at Madison Square Garden.