The two had met twice in the regular season and the Bills won both, most recently by three points in San Diego a month earlier on Thanksgiving Day.
Hall of fame wide receiver Lance Alworth of the Chargers was injured in the final regular season game (left knee hyperextension) and did not play.
[3][4] Combined with the next season, the Bills' consecutive AFL titles are the only two championships ever won by a major league team based in Buffalo.
Held six days after the completion of the 1964 regular season, it was the only AFL title game not played on Sunday, as well as the final one televised in black-and-white.
[12][13] This infusion of cash helped spur a bidding war for talent with the NFL, which led to the AFL–NFL merger agreement in June 1966.