FIFA have denied that they are conducting an investigation into an allegation of match-fixing at the 2010 World Cup.

FIFA's former head of security, Chris Eaton, yesterday alleged that an incident in the match between Nigeria and Greece was being looked at due to comments made by a match official after the game, which ended 2-1 to Greece.

However, FIFA have stated that they are not conducting any such investigations into any World Cup match.

"We are not conducting any match-fixing investigation for 2010 FIFA World Cup matches. Ralf Mutschke is the head of FIFA's new security division. The fight against match fixing is only one of their duties, in addition to stadium security and general event security for all FIFA events including the FIFA World Cup," read a FIFA statement.

"In relation to match fixing, investigations can be launched by the security division in case there is a suspicion a match or a competition could be fixed.

"Any such issues are then reported to the FIFA Disciplinary Committee (in order to sanction members of the football family) as well as to the disciplinary bodies of national Football Associations and/or to law enforcement organisations."

During the match in question, Nigeria's Sani Kaita was dismissed for violent conduct after an incident with Vasilis Torosidis.