Premier League clubs approved changes to the league's Associated Party Transaction (APT) rules, the English top-flight competition said on Friday, a blow to reigning champions Manchester City who did not want the rules to be changed. The APT rules ensure clubs cannot benefit from commercial deals or reductions in costs that are not at Fair Market Value (FMV) by virtue of relationships with associated parties. "The amendments to the rules address the findings of an Arbitration Tribunal following