Buffalo Bills RB James Cook skipped training camp for "business" reasons as he seeks a new contract entering the final year of his rookie deal — casting doubt on his 2025 fantasy football outlook.

Cornerback Max Hairston suffered a knee injury that will keep him out for multiple weeks, and wide receiver Khalil Shakir suffered a high ankle sprain that could cause him to miss Week 1 against the Baltimore Ravens. Now, the Bills are dealing with yet another issue.

With his contract dispute ongoing, Buffalo Bills running back James Cook showed up for Sunday's mandatory practice but did not participate. Instead, the 25-year-old stood off to the side and spent a short amount of time on an exercise bike.