The Boston Bruins lost their sixth straight game Friday night with a 5-1 defeat to the St. Louis Blues at Scottrade Center.

The Bruins played an exceptional first period and took a 1-0 lead into the intermission, but the Blues struck early and often in the second period en route to a convincing victory.

The B’s will travel to Chicago for a Sunday afternoon game against the Blackhawks in the final game of their road trip.

Here are three quick takeaways from Bruins-Blues.

1. Malcolm Subban Struggles In NHL Debut
Boston’s top goaltending prospect wasn’t able to make it through two periods against a Blues team that entered Friday night as the NHL’s third-highest scoring team. Subban allowed three goals on three shots in the first 5:09 of the second period and was replaced by Tuukka Rask, who’s now appeared in 16 straight games and 25 of the last 26.

Subban, who slammed his stick in frustration after exiting the ice, had trouble with his glove hand throughout the game. He went back into the game shortly after the Blues took a 5-1 third-period lead with a little more than five minutes remaining.

2. Bruins Penalty Kill Gives Up Another Goal
Boston’s penalty kill gave up a goal to Vladimir Tarasenko at 13:59 of the second period that gave St. Louis a 4-1 lead. The Bruins had a 95.3 percent success rate on the penalty kill in January and a 12-for-13 mark in the first five games of February. But over the last three games, the Bruins have allowed four power-play goals.

3. Vladimir Tarasenko Scores Twice
Tarasenko entered Friday’s matchup with a team-leading 29 goals and he added more two tallies against the Bruins to reach the 30-goal mark for the first time in his career. He scored a power-play goal in the second period along with an even-strength tally in the third period. The Russian right winger also led the Blues with four shots on goal in 16:47 of ice time.

Thumbnail photo via Billy Hurst/USA TODAY Sports Images