The Astros signed international free-agent shortstop Wilson Amador, the team announced. Amador, 16, is a native of Bani in the Dominican Republic._ Amador (6-1, 180) was scouted and signed by Astros Director of International Oz Ocampo. Amador recently underwent surgery to repair a growth plate fracture in his right elbow. He is expected to miss approximately six months but should return to full strength in time for the 2014 Dominican Summer League season. “Amador is a premium athlete, and one of the top shortstops in this year’s class,” said Ocampo. “Our scouts have observed Amador in numerous workout and game situations in the Dominican Republic, Puerto Rico, and Florida since [...]