The Harrisburg Senators are a minor league baseball team based in Harrisburg, Pennsylvania. The team, which plays in the Eastern League, is the Double-A affiliate of the Washington Nationals. The Senators play in FNB Field, located on City Island in Harrisburg. The stadium originally opened in 1987 as Riverside Stadium, but has since been renamed and renovated. It presently has a seating capacity of 6,187 fans. The "Senators" nickname refers to the host city being the capital and thus home of the Pennsylvania legislature. The team colors are red, navy blue, and gold, the same colors of the parent club, the Washington Nationals.