ORCHARD PARK, N.Y. — Former Bills linebacker Harry Jacobs, who was a key member of Buffalo’s 1964 and ’65 AFL champion teams, died on Friday. He was 84.

The team announced Jacobs’ death. He was battling numerous illnesses, including Alzheimer’s, and living in a nursing home just outside of Buffalo.

Jacobs played for the Bills from 1963 to 1969. Jacobs was Buffalo’s signal-caller on defense, and a respected leader in the locker room.