The Wilmington Blue Rocks is an American minor league baseball team that plays in the Advanced Single-A league. Formed in 1993, the team hosts its home games at Daniel S. Frawley Stadium in Wilmington, Delaware. The Blue Rocks serves as a minor league affiliate to the Kansas City Royals, and has been home to many star MLB players over the years, including Carlos Beltran, Zack Greinke, Johnny Damon and Jacoby Ellsbury.