Kozak has been a regular in Buffalo's lineup the past couple weeks but will be sidelined, possible for the remainder of the season, due to a hip strain. The 22-year-old forward has five points (3G / 2A) through 21 games in his rookie season.

Ostlund was the 16th overall pick of the Buffalo Sabres in the 2022 NHL Entry Draft. The 21-year-old forward has been enjoying a productive campaign in the AHL, scoring 36 points (19G / 17A) in 44 games with the Rochester Americans.

Reimer has started four of the last five games for the Sabres, all wins (4-0-0), and will return to the crease on Tuesday against the Ottawa Senators. The 37-year-old Reimer has seen limited action this season but recently came off an 11-appearance stretch (3-5-1) where he posted a solid 2.60 GAA and .911 SV% from mid-December to mid-March. Still, the Sabres enter Tuesday's contest as +161 road underdogs against a Senators team without Brady Tkachuk (upper body).

Norris has not played since March 12th and remains sidelined with a mid-boy injury and no certainty as to when he may return to the lineup. Norris was productive early in his tenure with Buffalo, recording two points (1G / 1A) and averaging 18:36 time-on-ice but has been limited to only three games.

Reimer has started four of the last five games for the Sabres, all wins (4-0-0), and will likely return to the crease on Tuesday against the Ottawa Senators. The 37-year-old Reimer has seen limited action this season but recently came off an 11-appearance stretch (3-5-1) where he posted a solid 2.60 GAA and .911 SV% from mid-December to mid-March. Still, the Sabres enter Tuesday's contest as +161 road underdogs against a Senators team without Brady Tkachuk (upper body).

Rathbone was recalled on the weekend for precautionary reasons but did not draw into Buffalo's lineup. The 25-year-old defenseman will return to the Rochester Americans (AHL), where he has 20 points (5G / 15A) in 56 games this season.