Buffalo Bills' running back James Cook did not take part in practice with the team on Sunday. Here's what we know about his absence from the latest session of training camp.

The two-time Pro Bowler worked out on a stationary bike as his teammates went through drills. This is set against the backdrop of Cook wanting a new contract as he enters the final year of his rookie deal. He said little of his decision not to practice, but the subtext seemed pretty clear: The Bills, for their part, declined to comment.

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,

Cook arrived at Bills practice on Sunday in street clothes and was seen by reporters walking around during practice but never participated. Then Cook spoke to the media and was asked straight-up why he wasn't practicing.

Before hitting the practice fields at St. John Fisher University on Sunday morning, Buffalo Bills head coach Sean McDermott spent several minutes running through a lengthy list of injured players. It’s a list that includes two who are listed as week-to-week: cornerback Maxwell Hairston,