The main item on the Congress agenda on 1 June is the presidential election between incumbent Sepp Blatter and challenger Mohamed Bin Hammam.

BBC: Fifa to review rules over player nationality

Last month was the tipping point for FIFA allegations, as Warner and Asian soccer chief Mohamed bin Hammam were suspended over allegations of bribery.

FORBES: FIFA Chaos Could Get U.S. Another Shot At Hosting World Cup

He was elected to the FIFA executive on a platform of greater transparency in the wake of corruption scandals which saw one of his predecessors in the vice president role, Qatari Mohamed Bin Hammam, banned for life on bribery charges.

CNN: FIFA Asia chief: 2022 Winter World Cup would 'make sense'

The former colleagues fell out in 2011 when Blazer reported Warner and Asian Football Confederation chief Mohamed bin Hammam to FIFA's Ethics Committee, accusing the duo of trying to bribe Caribbean delegated to support the Qatari bin Hammam in that year's FIFA presidential election.

CNN: FIFA suspends Executive Committee member Chuck Blazer