Former FIFA secretary general Jerome Valcke has appealed to the Court of Arbitration for Sport against his 10-year ban from soccer, the tribunal said on Tuesday.

The Frenchman, whose job was to ensure the smooth running of FIFA and in particular its flagship World Cup tournament, was right-hand man to now banned president Sepp Blatter before both were embroiled in a corruption scandal which swept soccer’s governing body in 2015.

He was initially banned for 12 years, which was reduced to 10 by FIFA’s own appeal committee last June.

Last March, the office of Swiss attorney-general Michael Lauber said Valcke was suspected of criminal mismanagement and other offences. He denies any wrongdoing.

In September, FIFA’s ethics committee opened a new investigation into Blatter, Valcke and former finance director Markus Kattner for possible ethics violations which included bribery and corruption. That investigation, in which all three deny wrongdoing, is still under way.

CAS has already rejected appeals from Blatter and former European soccer boss Michel Platini, who was also embroiled in the scandal, although in the latter’s case it cut the ban from six years to four.

He was widely credited with getting the 2010 and 2014 World Cup tournaments, held in South Africa and Brazil respectively, up and running in time after delays in the preparations.

Adamu was first banned following a Sunday Times investigation when he was secretly filmed by journalists, posing as lobbyists, asking for $800,000 to influence his vote in the 2018 and 2022 World Cup bidding process.