The trial of Lamine Diack, the disgraced former head of athletics' world governing body the IAAF, has been delayed until June, reports BBC News.
The 86-year-old Senegalese faces corruption and money-laundering charges linked to the Russian doping scandal.
The trial was due to start in France on Monday.
But new documents were submitted to the Paris court concerning testimony that his son and co-defendant Papa Massata Diack gave in Senegal in November.
The BBC has learned the IAAF, now called World Athletics, is seeking 41.2 million euros (£35.3m) in compensation from the six defendants as a result of the scandal.
The governing body has lodged a claim based on loss of sponsorship revenue, damage to reputation and potential loss of earnings.
Diack Sr was investigated by French authorities for four years over claims he took payments of more than 3 million euros to cover up cheating.
On Monday, all parties in the case were given time to review the documents, which include a record of a hearing at which Diack Jr gave evidence and bank records. He remains in Senegal and the country has refused to extradite him.