During Sepp‘s time as a president at the FIFA, FIFA‘s secretary-general, Blatter‘s deputy and former protege Michel Zen-Ruffinen made a 30-page dossier report showing all the mismanagement in the organization, which led up to FIFA‘s marketing partner a loss of $100 million and Sepp was to blame for.
It was a huge amount and made a huge deal. The dossier was later handed to Swiss authorities, but they cleared Sepp‘s name and asked FIFA to pay all the loss and costs.
Later Blatter held an internal investigation within FIFA as the organization members broke confidentiality agreements which led to letting go of Zen-Ruffinen from the organization. It happened before the 2002 FIFA World Cup.