The Buffalo Sabres are preparing for a crucial season. We have already taken a look at the targeting situation and what the team should do to take the next step to finally get back to the play -offs. Although there are still promising prospects in the pipeline, the image of the future must include a Playoff performance from 2026. Here is a look at the defensive core of the Sabres and how it forms for the 2025-26 season.
Top pairs – Rasmus Dahlin/Bowen Byram
After Relocating limited free agent Bowen Byram This season outside the season, the Sabres have set up the next two seasons. Byram has shown his potential since his Acquired for Centrum Casey MittelstadtAchieving a career-high 31 assists and 38 points last season.
At the age of 24, Byram has the skills to be an NHL defender of the top. In combination with Dahlin and the two brought together for more than 600 minutes on five-on-five-the duo placed a Plus-20 target difference. Playing with Dahlin on a nocturnal basis can be the key to completely unlock Byram.
Then there is Rasmus Dahlin. The 25-year-old Swede is one of the best defenders in the game. It doesn’t matter who he plays with, Dahlin blooms. He was excellent in a different ugly season 2024-25 and scored 17 goals and 68 points.
The two play the two together, the Sabres gives a legitimate top combination. Many expect Dahlin to take the next step forward, even a challenge for the Norris trophy as the best defender of the competition. This duo is able to eat for many minutes, ensures quality defensive game and being dynamic attacking.
Second coupling – Michael Kesselring/Owen Power
This is the group of the group. Owen Power returns for his fourth full season with the Sabres. The first overall choice in 2021 had its best offensive season so far with seven goals, 33 assists and 40 points-all career hogers in 2024-25.
Related: Is 2025-26 When Sabres’ Rasmus Dahlin finally wins the Norris trophy?
However, it was not all sunshine and flowers. Although it was 6-foot-6, 226 pounds, Power looked weak in its own zone, especially for the net. He does not have the average streak to be a dominant presence for the net at the front, but it must become better in his own zone.
That is where Michael Kesselring enters. The 25-year-old defender arrived through the trade that sent the dissatisfied JJ Peterka package. Although he was not the top-six attacker that everyone had hoped for, Kesselring could be the key to the defense. When he was printed in the top four minutes before Utah last season, Kesselring excel. He is the tough, physical, home defender who could unlock power.
With greater freedom to roam and play at its strengths, power could take a big leap into the lead. Who knows? Looking at a defensive responsible partner can also learn Power a few things. If this couple is everything that Sabres fans hope it will be, there is no big drop-off between the two upper pairs.
Third coupling – Mattias Samuelsson/Conor Timmins
Samuelsson is easily the most controversial presence on the blue line. In the middle of a huge extension, drawn a few seasons ago, he thought it was impossible to stay healthy. Last season he struggled defensively, even when he stayed in the line -up.

The acquisition of Timmins can be one of the most underrated movements of the low season. Last season, while he played for a miserable Pittsburgh Penguins team, he offered an invaluable presence and eventually went on the line -up.
This can and must be the tough, physical, defensive reliable couples. Samuelsson may never play 80 or more matches, but getting north of 70 would be a huge victory this season, while Timmins can be that reliable partner in all facets, which should make the defense of the Sabres difficult to play against, regardless of who is on the ice.
Sabres’ emerging defense unit
Although the changes are not wholesalers – Timmins and Kesselring, Connor Clifton Out and Jacob Bryson in a reduced role – it seems as if they are the right one. The top four can (at least on paper) be one of the best in the NHL.
The Sabres hope that the addition of Kesselring and the regular combination of Byram with Dahlin can unlock the potential of the top four. With Timmins and Samuelsson in an additional role, the hope is that this is the season in which the defense of the Buffalo Sabres emerges as a force.

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