Buffalo Bills coach Sean McDermott says edge rusher Joey Bosa is expected to miss all of the team’s spring practices because of a calf injury as the team opened its first voluntary session.

It's no secret that Buffalo Bills star running back James Cook wants an expensive new contract. He reminded everyone of this by skipping out on the first day of voluntary offseason team activities (OTAs).

Buffalo Bills running back James Cook was absent from the beginning of his team's voluntary offseason team activities on Tuesday (May 27), head coach Sean McDermott confirmed via NFL Network's Tom Pelissero.

Unsurprisingly, Buffalo Bills running back James Cook has failed to report to voluntary OTAs, per head coach Sean McDermott. He is the only player missing from spring workouts. OTAs are voluntary, so Cook doesn’t have to be there.

James Cook expressed early in the offseason that he wants to be paid $15 million per year. Coming off a season with a league-high 16 rushing touchdowns, he might have a case. But the Buffalo Bills have handed out extensions to pretty much every other eligible star on their roster except Cook.

NFL Network' Cameron Wolfe reports that every Buffalo Bills player is present for organized team activities on Tuesday except for running back James Cook, who is seeking a new long-term contract extension.