The Bills signed Buechele to a reserve/future contract Tuesday, Aaron Wilson of KPRC 2 Houston reports.
Buechele is returning to Buffalo after spending the majority of the 2025 campaign on the team's practice squad. The 28-year-old also had a brief stint with Kansas City, appearing in one game and completing seven of 14 pass attempts for 88 yards. He could be a candidate to serve as the Bills' No. 3 quarterback during the 2026 season.