The Colorado Avalanche have acquired forward Casey Mittelstadt from the Buffalo Sabres in exchange for defenseman Bowen Byram.

Mittelstadt, 25, was the eighth overall choice by Buffalo in the 2017 draft and has evolved into a dynamic two-way skater with high-end playmaking ability. 

The Avs also acquired defenseman Sean Walker and a 2026 fifth-round pick from the Philadelphia Flyers for forward Ryan Johansen and a 2025 first-round draft pick that is top-10 protected.