High Quality Content by WIKIPEDIA articles! In 2007, the Sons of Ben supporter group formed and began advocating for Major League Soccer to grant Philadelphia an expansion team. They are credited with convincing the league that the area already had an established fanbase for soccer. Major League Soccer added Philadelphia as its sixteenth team on February 28, 2008. The finalization of the club is the result of a $47 million package approved by Delaware County politicians and Pennsylvania governor, Ed Rendell, that includes the cost of Union Field and a major urban renewal project. Keystone Sports & Entertainment's plan for Chester was initiated in late 2006, soon after the New Jersey legislature terminated an earlier proposal for a soccer-specific stadium at Rowan University.