Eintracht Frankfurt defender Martin Hinteregger has cut ties with business partner Heinrich Sickl, who was a member of Graz’s city council for the right-wing populist party FPÖ. “I have through professional football and also privately friends all over the world and clearly reject accusations that I have a right-wing orientation, and continue to stand up against any kind of discrimination!” wrote Hinteregger on social media on Thursday. The 29-year-old was responding to a report from journalist Michael Bonvalot, who questioned Hinteregger’s business relationship with Sickl. Sickl had made headl…