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Predicting Boston Bruins Game 1 lineup vs. Buffalo Sabres in first-round of 2026 Playoffs

Who will slot in for the Bruins on Sunday night in Game 1?
Apr 14, 2026; Boston, Massachusetts, USA; Boston Bruins left wing Tanner Jeannot (84) celebrates after a goal by center Mark Kastelic (47) during the first period against the New Jersey Devils at TD Garden. Mandatory Credit: Bob DeChiara-Imagn Images
Apr 14, 2026; Boston, Massachusetts, USA; Boston Bruins left wing Tanner Jeannot (84) celebrates after a goal by center Mark Kastelic (47) during the first period against the New Jersey Devils at TD Garden. Mandatory Credit: Bob DeChiara-Imagn Images | Bob DeChiara-Imagn Images

The Boston Bruins and the Buffalo Sabres will begin their first-round playoff series on Sunday night at the KeyBank Center in Western New York. It has been a long time since the two rivals have met in the postseason.

As far as lineups go, Marco Sturm has mused on multiple ones throughout the season, especially with his third line. He hasn't found the answer on the wing, but recently signed prospect James Hagens adds an interesting option to the lineup. He played in the last two games of the regular season after the Black and Gold had their playoff berth locked up.

When it comes to the lineup, expect it to change due to injuries that could occur, the situation in the series, and the need for a certain game. With that said, while Sturm was not committed to his Game 1 lineup, let's predict it.

Bruins forward lines for Game 1 vs. Sabres

Left Wing

Center

Right Wing

Morgan Geekie

Elias Lindholm

David Pastrnak

Casey Mittlestadt

Pavel Zacha

Viktor Arvidsson

Marat Khusnutdinov

Fraser Minten

James Hagens

Mark Kastelic

Sean Kuraly

Tanner Jeannot

Really, the only question for Game 1 with the forwards is who is going to be in the lineup on the third line with Khusnutdinov and Minten? Listen to comments from Sturm the last couple of days, all signs are pointing toward the seventh overall pick in last June's Entry Draft slotting over Mikey Eyssimont, Alex Steeves, or Lukas Reichel.

Sturm even hinted that Hagens, if he is in teh lineup, could even see some power play time. Throughout the series, the Bruins' third line could be a difference-maker against Buffalo. You know what you're going to get from the fourth line and the second line, while the first line is going to need to produce. Hagens should be in the lineup.

Bruins Game 1 pairings on defense

Left Defense

Right Defense

Jonathan Aspirot

Charlie McAvoy

Hampus Lindholm

Mason Lohrei

Nikita Zadorov

Andrew Peeke

It's just a matter of what the pairing is going to be rather than who will be in and who will be out. Jordan Harris and former Sabres' defenseman Henri Jokiharju will be the extras for the series. If there is an area of concern for the Bruins this series, it's going to be on the backend.

Bruins Game 1 goalie

Goalies

Jeremy Swayman

Joonas Korpisalo

Joonas Korpisalo has had a good season, but let's be honest, this is Jeremy Swayman's series unless an injury occurs. If there is one area where Boston has the advantage over Buffalo, it's between the pipes. If the Bruins are going to win this series, Swayman is going to have to steal a couple of games himself.

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