BOSTON — Jake Allen stopped 32 shots for his fifth shutout, Vladimir Tarasenko and Robby Fabbri scored third-period goals and the St. Louis Blues cooled off the Boston Bruins with a 2-0 victory Tuesday night.

It was only the second regulation loss in 16 games for Boston (11-2-3). St. Louis posted its fifth win in seven games.

The Bruins had won six of their last eight at home.

Boston goalie Tuukka Rask made 27 saves, but lost in regulation for the first time in 11 starts after going 8-0-2.

Tarasenko took a pass and came charging down the slot before slipping a wrister past Rask’s blocker for his team-leading 22nd goal to make it 1-0 at 7:35 of the third. It extended the winger’s point streak to a season-high seven games, with six goals and five assists during that span.

Fabbri snapped off a shot from the left circle that beat Rask inside the far upper corner with just more than 7 minutes to play.

St. Louis had the only power play in a well-played, clean game that featured one third-period fight.

Despite the scoreless opening two periods, both teams had some very good scoring chances – with the best coming off the game’s opening faceoff.

The Blues had the opportunity in the opening half-minute when Troy Brouwer split two defensemen, broke in alone and fired a wrister that Rask blocked with his left arm.

St. Louis wing Alexander Steen fired a shot that caromed directly off the right post midway into the second before Allen made a stellar stop on Brad Marchand’s backhander about 4 minutes later.

Marchand collected a rebound at the bottom of the right circle, but Allen came sliding across quickly to make the save.

The Bruins owned a 26-21 edge in shots on goal over the first two periods, which featured a good amount of end-to-end play. But solid defensive positioning by both teams led to few second chances.