The former right-hand man of ex-Fifa president Sepp Blatter has appealed against his 10-year ban from football.
Jerome Valcke, who was secretary general of the sport's world governing body, was banned last year for his alleged involvement in a scheme to profit from World Cup ticket sales.
The Frenchman, 56, has now asked the Court of Arbitration for Sport to overturn the sanction.
Valcke has always maintained he has done "absolutely nothing wrong".
He was originally banned for 12 years by Fifa and fined 100,000 Swiss francs (£70,800), though the length of the ban was later reduced.
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