Sodo Mojo’s Top 10 Mariners Prospects: #8 Ronald Rosario

A farm system as bad as the Seattle Mariners needs guys to “pop”. The prospect that rockets up their board by surprising scouts with his tools and overall game. For the Mariners, that player may very well be Ronald Rosario.

Ronald Rosario, a 20-year-old international free agent signed by the Mariners in 2013, finally made his state side debut in 2017. The Dominican born outfielder spent his first 3 season playing in the Dominican Summer League, where he showed steady growth every season.

Rosario made the jump to Everett after a short stint in the AZL, and showed real promise in 40 games with the Aqua Sox. During his stint with the Mariners Low-A affiliate, Rosario hit .294/.355/.516, with 6…