The reputation of FIFA suffered a major blow last year, when former Asian Football Confederation chief Mohammed bin Hammam was forced to withdraw his candidacy to replace Blatter as president.

Qatari Bin Hammam was later handed a life ban from involvement in FIFA after being found guilty of corruption by the organisation's disciplinary committee.

FIFA also came under severe criticism for the bidding process and secret voting to determine the hosts of the 2018 and 2022 World Cups, awarded to Qatar and Russia respectively.

Blatter, 76, courted further controversy when he claimed the problem of on-field racial abuse should be settled by a handshake and forgotten.

Despite the catalogue of issues and subsequent criticism, the Swiss was in a defiant mood when he spoke at the FIFA Congress in Hungary.

"FIFA is strong," Blatter said.

"FIFA is united. FIFA is an institution of 108 years. We are not the best and we have never said we are the best. We have only said we are the most popular and that we are. We are the most popular because we have the game. The most popular game of the world.

"We know that the development of FIFA has been very fast, and perhaps the governance hasn't followed this rapid development. And from time to time we are behind the situations where we should have been. But those who have attended the congress today, they will have realised that we are okay."

FIFA General Secretary Jerome Valcke provided an update on the construction delays plaguing the 2014 Brazil World Cup.

While stadium construction in the South American country remains on track, upgrades to infrastructure such as railways, airports and hotels are lagging badly.

"We are aware that the (Brazilian) government are releasing a report, and we are aware what we are dealing with," Valcke said in reference to the delays.

"We discussed with the government that we need all of the projects to happen ... so we will have a prioritisation of the projects to make sure we put all the energy into the ones that are key for the organisation of the World Cup."