Citizens Bank Park is a baseball stadium located in Philadelphia, Pennsylvania, in the city's South Philadelphia Sports Complex. It is the home playing field of the Philadelphia Phillies, the city's Major League Baseball (MLB) franchise. The stadium opened April 3, 2004, and hosted its first regular-season baseball game on April 12 of the same year, with the Phillies losing to the Cincinnati Reds, 4–1. It is named after Citizens Financial Group.