He got the first start of his career on July 31 , against the Chicago Cubs at Wrigley Field .
Koback was the youngest Pittsburgh player ever at 18 years and 10 days old when he made his MLB debut .
Koback got the first start of Koback 's career on July 31 , against the Chicago Cubs at Wrigley Field .
Koback was the youngest Pittsburgh player ever at 18 years and 10 days old when he made his MLB debut .