Mariners Sign Dominican Outfielder Ronald Rosario

The Marinres have signed Dominican outfielder Ronald Rosario for $350,000.

Rosario, 16, stands out for the physical projection he has on his skinny, high-waisted frame (6-foot-2, 160 pounds), and he should continue to improve once he adds weight. He’s a lefthanded, gap-to-gap hitter now, but more power could come once he packs on some strength. Rosario trains with Basilio Vizcaino (“Cachaza”) and plays in the Dominican Prospect League.

Baseball America subscribers can access more information on Rosario, along with reports on more than 70 international prospects on the market.