Brewers have come to terms with 16-year-old shortstop Santo Aybar. Aybar was named the 18th-best Dominican prospect in July.

EDIT: I found this description of Aybar at Brewerfan.net: "The wiry Aybar is an aggressive hitter, swinging with a high leg kick to generate above-average raw power. He's a free swinger who scouts say will have to tone down his approach as he moves up the ladder. Some scouts like his aggressive approach, but his all-out swing gets him caught out front against breaking balls. Aybar is an above-average runner, with scouts timing him anywhere from 6.7 to 6.9 seconds in the 60-yard dash, though he's expected to lose speed as he adds muscle to his frame. Aybar has some athleticism, though scouts say his throwing motion is unusual and his defense is erratic, which could lead to him moving to center field, though there's a chance he could also handle third base."

Reminds me a lot of Alfonso Soriano.