The Wilmington Blue Rocks will open their 2021 season at home against the Aberdeen IronBirds on Tuesday, May 4. The Rocks, who are now a Washington Nationals affiliate after many years with the Kansas City Royals, will play a 120-game season in a new 12-team Mid-Atlantic League operating on Major League Baseballโs High-A level. Joining Wilmington in the Northern Division will be Aberdeen, Md. (Orioles), Lakewood, N.J. (Phillies), Brooklyn, N.Y. (Mets) and Hudson Valley, N.Y. (Yankees). Visit Milb.com/Wilmington for complete schedule.