A Frankfurt tax investigator has told the trial of three former German Football Federation (DFB) officials that a payment made in connection to Germany hosting the 2006 World Cup was probably a “sham transaction.” According to investigators, €6.7 million ($7.2 million) that the DFB transferred to football governing body FIFA in April 2005 was the repayment of a loan from French entrepreneur Robert Louis-Dreyfus and not a contribution to a World Cup gala, which never took place. It is alleged the late Franz Beckenbauer used the original loan to buy votes in the hosting decision for the 2006 tou…