The following post is from our advertiser, DC United. UEFA Champions League contenders Paris Saint-Germain, led by newly-signed Swedish forward Zlatan Ibrahimovic, will visit RFK Stadium this Saturday to take on D.C. United in a special international friendly. Don’t miss this exciting match! D.C. United vs. Paris Saint-Germain Saturday, July 28 at 7:30pm ET RFK Stadium PSG will compete in 2012-13 UEFA Champions League Prolific goal-scorer Ibrahimovic signed last week from AC Milan Argentine playmaker…