The Buffalo Bills began OTAs Tuesday, and according to reports, every player was in attendance except one — James Cook. The star running back awaits a contract extension, and while OTAs are voluntary,

As Rapoport noted, Cook has until mandatory minicamp (which begins on June 10) to determine whether he's willing to actually hold out for a new contract. OTAs are optional, so he can't be fined for failing to show up.

Head coach Sean McDermott told reporters that James Cook is the only player not present amid his desire for a new contract, while Joey Bosa suffered a calf injury that will keep him sidelined.