Lucas Giolito in spring 2014. (John McDonnell/The Washington Post)

Two big parts of the Nationals’ future — starter Lucas Giolito and shortstop Trea Turner — were named to the Futures Game, the exhibition held annually before the MLB All-Star Game and designed to showcase some of the top minor league talent. A team made up of U.S. prospects will face off on July 12 in Cincinnati against a World team comprised of prospects born abroad.

Giolito, 20, is the top prospect in the Nationals farm system and among the most coveted in baseball. Giolito entered the season as Baseball America’s No. 7 overall prospect. But since then, all but one of the prospects rated higher (shortstop Corey Seager of the Dodgers) has been promoted to the major leagues. Giolito, the Nationals’ first-round pick in 2012, has a 3.71 ERA but 57 strikeouts and 12 walks in 43 2/3 innings at Class A Potomac. This will be his second straight Futures Game appearance, after he joined outfielder Michael A. Taylor in representing the Nationals last season.

Turner, 21, recently joined the Nationals organization after six months in limbo as part of the three-team trade with the Padres and Rays. Turner, a Padres’ 2014 first-round pick, is hitting .359 with four stolen bases in 10 games for Class AA Harrisburg. Between Class AA San Antonio in the Padres minor leagues and Harrisburg, he is hitting .327 with 15 stolen bases in 68 games this season.

At least one player from each organization is named to the team, selected by the MLB Scouting Bureau,, Baseball America and the teams.