The Nationals announced that they have selected the contract of top shortstop prospect Trea Turner to the Majors. The 22-year-old Turner came to the Nats along with right-hander Joe Ross in the three-team trade that sent Steven Souza to the Rays and Wil Myers to the Padres. In order to clear a spot on the active roster, the Nationals have placed Tyler Moore on the disabled list. Meanwhile, righty Aaron Barrett will hit the 60-day DL to clear a 40-man spot.