German football federation president Theo Zwanziger has called for Wednesday's FIFA presidential vote to be conducted by secret ballot, DPA reported.
Zwanziger said Joseph Blatter, who is seeking a fourth term as FIFA president, would be well advised not to accept a vote by acclamation in view of the corruption allegations involving football's ruling body.
"In the present situation it is about authority or not (authority). This can only be restored by a secret ballot," he said in an interview with the DFB website. "There would be no hypocrisy with such a voting procedure."
Blatter is standing unopposed in the vote following the decision by Qatari executive member Mohamed bin Hammam to withdraw his candidacy.
Zwanziger said a postponement of the vote, as recommended by the English and Scottish associations, "is not a serious option" because it "would paralyse" FIFA which would be "without leadership for months."
Zwanziger, who is joining the executive committee for the first time, called for "better structures" in FIFA and for the corruption allegations to be thoroughly investigated.
"This is about the credibility of FIFA, its president and with it football in the whole world.