Here are three observations from the second day of Bills training camp: While not an on-field note, running back James Cook has been in headlines throughout the offseason because of his contract dispute with the team. Cook wants a new deal and is entering the final year of his current one.

Some fans will say that Diggs is the greatest wide receiver to play in a Bills uniform, and the numbers are impressive. He recorded more than 1,100 yards in all four of his seasons, which also included 37 touchdown receptions. It's a four-year stretch that includes four Pro Bowl appearances and first and second-team All-Pro.