Michel Platini's attempts to explain his £1.35million payment from FIFA are "just not enough", according to the head of the German Football League (DFL).
DFL president Reinhard Rauball said the UEFA president has yet to present a "credible explanation" of the reasons behind a nine-year gap in the payment, which was made in 2011.
Rauball told Suddeutsche Zeitung: "What Platini has told us so far is just not enough.
"Michel Platini has to give credible explanation to the public and football fans - and that is the emphasis: credible."
The payment of 2million Swiss francs for work apparently carried out for FIFA between 1999 and 2002 is the subject of criminal proceedings involving FIFA president Sepp Blatter. Platini's status has been described by the Swiss attorney general as ''in between a witness and accused person''.
The UEFA president is still determined to stand for the FIFA presidency and has said the delay was because of FIFA's financial position at the time, but has not explained why there was a wait of nine years.
Blatter is also under investigation for TV rights deals he signed off to former Caribbean football chief Jack Warner, who sold them on for a £11million profit, and Rauball said Blatter should leave immediately rather than wait until February.
"I can imagine that if he stays until February he might get the idea to say: 'Well, if no other candidate is there then I will stay on'," Rauball said.
"It's about time to consider a plan B. The U.S. justice department has classified FIFA as influenced by organised crime and corruption."
Meanwhile, reports in Brazil say former Brazilian federation president Jose Maria Marin has agreed a deal with the US justice department that will see him extradited from Switzerland and live under house arrest in his apartment in New York's Trump Towers.
Marin was one of seven FIFA officials arrested in May and will pay 10million US dollars (£6.6million) in bail, according to Estado de Sao Paulo.
Source: PA
