Amid contract negotiations with the Buffalo Bills, running back James Cook has opted to stage a hold-in during the team's training camp.

Buffalo Bills general manager Brandon Beane has addressed running back James Cook sitting out practice on Sunday and his contract situation.

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.