The 2015 Philadelphia Union season was the club's sixth season of existence, competing in Major League Soccer, the top flight of American soccer. The team was managed by Jim Curtin, his second season with the club and first full season after taking over from John Hackworth midway through the 2014 season. For the second consecutive season, the Union finished runners-up in the 2015 U.S. Open Cup, this time to Sporting Kansas City. The 2015 season also marked the departure of CEO Nick Sakiewicz, who had been with the club since its inaugural season. Sakiewicz was replaced with former U.S. men's national team player, Earnie Stewart, who was named Sporting Director in October 2015.