Improving pace of play was among the reasons for the Sabres moving Mittelstadt 2023-24 Season 2024 NHL Trade Deadline by Chad DeDominicis - March 6, 2024March 6, 20241 The Buffalo Sabres made a big move trading Casey Mittelstadt to the Colorado Avalanche in exchange for defenseman Bowen Byram. This content is for Basic Access- Monthly, Premium Access - Monthly, Basic Access - Annual, Premium Access - Annual, and One-Time Buy members only.Login Join Now