MLB always holds a Futures game, which coincides with its all-star game. Former NCSU Shortstop Trea Turner was selected to play in it on July 12 in Cincinnati.
Link: http://m.mlb.com/news/article/132812278/23-top-100-prospects-to-join-futures-teams
Link: http://m.mlb.com/news/article/132812278/23-top-100-prospects-to-join-futures-teams