The Dodgers have signed Alberto Estrella, a 16-year-old shortstop out of the Dominican Republic, according to BaseballAmerica.com:

Estrella, a 16-year-old who has played in the International Prospect League, stands out for his size (6-foot-4, 195 pounds) and righthanded power potential. Estrella, who has spent time at shortstop, might be able to play third base but with his build he could end up at first base or an outfield corner spot. He trains with Arquimedes Guerrero, whose nickname is “Pla,” and was also represented by Rob Plummer.