In a disappointing playoff performance, the Boston Bruins' second line, featuring Pavel Zacha, Viktor Arvidsson, and Casey Mittelstadt, struggled significantly against the Buffalo Sabres, finishing with a minus-three rating. This was only the second time this season Zacha recorded such a low rating, while both Arvidsson and Mittelstadt experienced similar struggles. Throughout the regular season, this line was one of the Bruins' most productive, boasting a plus-19 goal differential, but their playoff performance has not matched their regular-season success. Zacha, who had a career-high 30 goals and 65 points this season, has only scored once in his playoff career. Arvidsson, with 25 goals this season, brings playoff experience but has yet to find the net with the Bruins. Mittelstadt, transitioning to the left wing after years at center, has also faced challenges. The Bruins need this line to rebound quickly, as their performance is crucial for the team's chances in the playoffs, with Game 2 scheduled for Monday evening.