James Cook dressed in uniform to warm up prior to the Bills preseason opener Saturday at Highmark Stadium after Buffalo’s top running back sat out the final four practices of training camp in a contract standoff with the team.

Buffalo Bills running back James Cook is still awaiting his new contract, and as such, is a hold in at training camp until otherwise stated. That means Cook isn't on the field with his teammates and isn't getting crucial reps to prepare him for the regular season.