Dallas traded Bishop (knee) and a seventh-round pick to Buffalo on Friday for future considerations.
Bishop's knee injury is expected to prevent the 35-year-old from returning to the NHL, so the Sabres will take on the final year of his contract while picking up a late draft pick. The team could stash him on long-term injured reserve once the 2022-23 campaign begins, but Buffalo may not need to worry about that with over $35 million in cap space currently.