The late Byron White played for the Pittsburgh Pirates (Steelers) and the Detroit Lions while in law school. He was eventually appointed to the Supreme Court by John F. Kennedy.
Since the merger that created the modern NFL in 1974, the instances of ties have been rare. As of 2021, it has only happened 27 times.
From the years 1956-1973, the football team The New York Giants had played in Yankee Stadium which is home to the MLB team the New York Yankees.
During a 1953 NFL game, Otto Graham received a serious injury to his face. He returned with a plastic face mask attached to his helmet. This led face masks to become modernized, and a standard for every football player from the NFL to the little leagues.
The NFL team the Chicago Bears were originally (but briefly) known as the Decatur Staleys.