Trivia: Who was the youngest athlete to play in a World Series?
Correct Answer: Freddie Lindstrom
So why is this answer correct? : Frederick “Freddie” Lindstrom made his MLB debut in 1924, when he was just 18 years old. (He signed a contract with the New York Giants when he was 16.) That October, he took the field for the Giants in the World Series against the Washington Senators, becoming the youngest person to play in an MLB championship — a record that has not been broken since. He was 18 years, 10 months, and 13 days old, and just starting his Hall of Fame career.