According to Ben Badler of “Baseball America”:
“Rosario, the No. 11 international prospect for July 2, is a 16-year-old righthanded hitter with plenty of room to fill out his lanky, 6-foot-3, 170-pound frame. Some teams project Rosario as a shortstop with offensive upside, though others think he may outgrow the position. Rosario grew up as a teammate with Rangers outfielder Nomar Mazara in La Javilla youth league. He trained at the academy of the president of the league, John Carmona.” Badler also suggests that “Rosario might be the most divisive player in Latin America. Those who like him say that he has strong fielding instincts, hands, and arm strength. Other scouts fear that he is prone to strikeouts with his uppercut stroke.”
Below is a video of Amed fielding plays and taking batting practice. Looks exactly how a 16 year old should look, raw. Amed was signed for 1.75 million which looks to be the largest amount in the international signing period.