FIFA ordered German-based magazine Der Spiegel to provide documentary proofs proving that Wilson Raj Perumal conducted a match-fixing fiasco over Cameroon players in the World Cup 2014 tournament.

FIFA did not comment on the suspected game-fixing hoax that was suspected of Cameroon team on their favor that still produced defeat neither admitting or denying the rumors.

Ralf Mutschke, FIFA's head of security, announced that he didn't believe Perumal's accusations on Wednesday and ordered instead, Der Spiegel to produce some proofs to prove the accusations as accurate.

"FIFA has substantial doubts about the allegations published by Der Spiegel," he said in a statement released to press.

"As such FIFA has asked Der Spiegel to provide us with all the communications with Perumal and any other material they claim to possess in order to prove the allegations they have made in public.

"This article has put the integrity of the FIFA World Cup matches in question which is a serious allegation.

"We have carefully monitored all 56 games to date and we will continue to monitor the remaining eight matches. So far we have found no indication of any manipulation on the betting market of any World Cup matches."

The Cameroon FA announced on Monday that it is keen on investigating match-fixing in the tournaments, particularly the match with Croatia, in which they incur a 4-0 loss.

Perumal, a person with match-fixing history, denied the allegations, maintaining his innocent stance all throughout the investigation process that has been taking place on an ongoing basis until further notice.