James Cook, who is seeking an extension with the team while slated to hit free agency in 2026, didn't participate in a training camp practice.

James Cook is seeking a new contract with the Buffalo Bills. He sat out practice Sunday as he negotiates with the franchise.

Buffalo Bills running back James Cook was the one Buffalo star in line for an extension that didn't receive one this spring. Greg Rousseau, Khalil Shakir, Terrel Bernard, Khalil Shakir, and Josh Allen all received new deals over the offseason, but the Pro Bowl running back was left without one.