FNB Field (formally known as Metro Bank Park) is a baseball park in Harrisburg, Pennsylvania, USA, located on City Island, in the Susquehanna River. It is the home field of the Harrisburg Senators AA minor league baseball team of the Washington Nationals, as well as the Harrisburg City Islanders soccer club of the USL. The original structure was built in 1987 and it was called Riverside Stadium until 2004. Currently, the ballpark has a capacity of 6,187 people. The ballpark received a $45 million renovation that began in 2008.