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.

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 Bills may have a problem brewing as James Cook sat out practice Sunday, apparently protesting his lack of a contract extension.