Like many youngsters in the Dominican Republic Rosario became enraptured with baseball at a very young age .
The Dominican Republic is an island nation of 10 million people that has produced the largest number of major leaguers outside the United States .
Like many youngsters in the Dominican Republic , an island nation of 10 million people that has produced the largest number of major leaguers outside the United States , Rosario became enraptured with baseball at a very young age .