Buffalo Bills' running back James Cook did not take part in practice on Sunday. After practice, he gave a one-word answer for why he didn't take part.

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.

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, who’s now joined by wide receiver Khalil Shakir.