Again the Bruins came out with energy in the first period.
And again they had several chances to capitalize on the power play.
And once again, they head to the dressing room scratching their collective heads as to why they’re down, 1-0, after 20 minutes.
The last time they played, Dennis Wideman  took a high sticking penalty in the first 24 seconds of overtime and it led to the game-winner in overtime for Washington.
Tonight, he mishandles a puck at the left point, leading to a turnover and a Derek Roy goal at 11:00. Roy skated in on Tuukka Rask  and beat him blocker side, up top for the game’s only score.
The Bruins had three power plays, and in keeping with recent trends, could do nothing with them. They have now gone six games without a power play – an 0-for-15 stretch. They have scored just three man-advantage goals in their last 16 games, going 3-for-41, or 7.3 percent. Not exactly the stuff of playoff hockey teams.
All three of those goals came against Calgary on March 27 at TD Garden.
The Bruins outshot the Sabres, 10-6, in the first period.