(AP Photo/Chris Szagola) CHESTER, Pennsylvania (WPVI) -- The Philadelphia Union has won its first-ever MLS playoff game on Sunday evening.[Ads /]'Phanatical' tattooed Eagles fan gets new Gritty inkThe Union beat the New York Red Bulls 4-3 in the first round of the MLS Cup Playoffs.[Ads /]The Union head to Mercedes-Benz Stadium on Thursday to take the Atlanta United.'Chester Trio' spreads positive message, sings at Philadelphia Union game Report a correction or typo