At the age of 77, Minnie Minoso becomes the first player to play professional baseball in seven decades. The Cuban native, who had a 16-year big league career which ended in 1964(with brief resumptions in 1976 and 1980), walks as the designated hitter for the St. Paul Saints against the Gary SouthShore RailCats in independent Northern League action.

This Day In Baseball

On July 16, 2003 At the age of 77, Minnie Minoso becomes the first player to play professional baseball in seven decades. The Cuban native, who had a 16-year big league career which ended in 1964(with brief resumptions in 1976 and 1980), walks as the designated hitter for the St. Paul Saints against the Gary SouthShore RailCats in independent Northern League action.

Source
Baseball Reference July 16