The Philadelphia Union are an American professional soccer team based in Chester, Pennsylvania. The Union competes in Major League Soccer (MLS) as a member club of the league s Eastern Conference. The club began play in 2010 as an expansion team of the league. The club plays their home matches at Subaru Park, a soccer-specific stadium located in Chester on the banks of the Delaware River. Jim Curtin is the Union s head coach. The Union finished as runners-up in the 2014, 2015 and 2018 U.S. Open Cup tournaments. In the 2014 edition, they lost to the Seattle Sounders FC 3–1 in extra time, and to Sporting Kansas City 6–7 on penalties after a 1–1 draw in the 2015 edition. They lost 3–0 to the Houston Dynamo in the final of the 2018 edition.