Watch Live: Philadelphia Union, Chicago Fire close out MLS Sunday (FS1)

Jun 3, 2015; Philadelphia, PA, USA; Philadelphia Union forward C.J. Sapong (17) celebrates his goal against the Columbus Crew during the first half at PPL Park. Mandatory Credit: Bill Streicher-USA TODAY Sports Jun 3, 2015; Washington, DC, USA; Chicago Fire forward David Accam (11) celebrates after scoring a goal against D.C. United in the first half at Robert F. Kennedy Memorial Stadium. Mandatory Credit: Geoff Burke-USA TODAY Sports