The Lancaster Barnstormers arrived in 2005, the first baseball team in the city for 44 years. The Barnstormers won the Atlantic League Championship Series in 2006, defeating the Bridgeport Bluefish in the league's first four-game sweep in a championship. The York Revolution played its inaugural season in 2007, reigniting the "War of the Roses" rivalry with Lancaster. The Barnstormers and the Revolution both wear retro uniforms of the respective Red Roses and White Roses for some of the games played between them.