Although Cook is at training camp, the two-time Pro Bowler isn’t practicing as he awaits a new contract. Cook, who turns 26 on Sept. 25, is in the final season of his rookie deal and fresh off rushing for 1,009 yards and a league-leading 16 touchdowns.

James Cook emerged from the Highmark Stadium tunnel in full pads and uniform, putting a charge into the pregame summer air. The Buffalo Bills running back hadn’t worn any of his gear for a week. He wants a new contract and has applied his leverage by refusing to practice.

Running back James Cook joined the Bills in pregame warmups but declined to play in the team's preseason opener against the Giants on Saturday amid his contract dispute, coach Sean McDermott said.