Nigeria, Sept. 1 -- The Nigeria Football Federation (NFF) has dismissed as fake a purported letter from world football governing body FIFA warning Nigeria against government interference in the federation's affairs.

The document, dated 1 September, and purportedly signed by FIFA Secretary-General Mattias Grafstrom, claimed FIFA had raised concerns over the resignation of former NFF President Ibrahim Gusau and threatened possible sanctions, including Nigeria's suspension from FIFA and CAF competitions.

The NFF, however, said the letter was entirely fabricated.

"The NFF has debunked news of a 'letter' circulating in sections of the media as being from world-football governing body, FIFA. It is totally fake," the federation said in a stat...