Nineteen year old Yefri Del Rosario signed with the Kansas City Royals in December of 2017 out of the Dominican Republic. He originally signed with the Atlanta Braves organization, but he was declared a free agent after the Braves were found guilty of international signing rule violations.
He is currently listed as the 23rd best prospect in the Royals organization according to MLB Pipeline.
The Statistics
So, Del Rosario has been with the Kansas City Royals since. The righty played for the Lexington Legends in the 2018 season. With the Legends, he started in 15 games, tallying a record of 6-5 and an ERA of 3.