According to NFL insider Adam Schefter on a recent episode of The Adam Schefter Podcast, James Cook’s contract frustration with the Buffalo Bills is becoming a major storyline.

Cook, 25, has skipped the team’s voluntary offseason program, including workouts in April and OTAs on May 27–29, June 2, and June 5. He was the only Bills player absent in May, as 89 of 90 players were in attendance. The team’s mandatory minicamp, scheduled for June 10–12, looms as another key moment in the negotiation timeline.

Buffalo Bills running back James Cook may be prepared to return for the start of mandatory minicamp, despite a report to the contrary.