The New York Giants, who are moving to San Francisco in 1958, purchase the Class-A San Francisco Seals team and will convince the Pacific Coast League to accept Phoenix as a location for the Seals.

This Day In Baseball

On October 21, 1957 — The New York Giants, who are moving to San Francisco in 1958, purchase the Class-A San Francisco Seals team and will convince the Pacific Coast League to accept Phoenix as a location for the Seals.

Their new farm team will be known as the Phoenix Giants.