Port of Spain: Former FIFA vice-president Jack Warner promised damaging revelations about FIFA President Sepp Blatter's electioneering, in a letter to a local newspaper.

Warner quit his post on the FIFA Executive Committee and as head of the Americas football confederation CONCACAF June 10 amid a bribery scandal ahead of the FIFA presidential election.

He alleged that Blatter used him and  and another ex-FIFA vice president, Mohamed Bin Hammam to offer "gifts" while running for the post in 1998 and 2002.