By Marcus Leach

The allegations of corruption that are threatening to ruin Fifa's reputation are now beginning to cost them credibility with major sponsors.

The world football governing body is facing a crisis, despite president Sepp Blatter claiming otherwise, as serious allegations of bribery have caused major unrest within the organisation.

Now leading sponsors Coca-Cola, Adidas, Emirates and Visa have all voiced concerns that the ongoing problems are detrimental to both the sport and the governing body's image.

"The current allegations being raised are distressing and bad for the sport," a Coca-Cola spokesperson said, despite Blatter strongly denying that Fifa is in a crisis.

Visa have also raised similar concerns, and have asked for action to resolve the matter as quickly as possible.

"The current situation is clearly not good for the game," a Visa statement said.

"We ask that Fifa take all necessary steps to resolve the concerns that have been raised."

Unless the elections are postponed, as the FA and SFA urged, Blatter will more than likely be re-elected, given he will be unopposed in the election since his only rival Mohamed Bin Hammam withdrew amidst all the furore around allegations.

Bin Hammam has been provisionally suspended by Fifa's ethics committee over allegations he offered financial incentives to Caribbean Football Union members.

Concacaf president Jack Warner, whose Fifa association governs the region of North, Central American and Caribbean football, has also been provisionally suspended.

As the tit-for-tat claims and appeals continued Bin Hammam appealed his ban, while Warner revealed an email he had received from Fifa general secretary Jerome Valcke which suggested Bin Hammam had "bought" the 2022 World Cup finals for Qatar.

Valcke was quick to clairfy his remarks in the email, but not before the developments added further fuel to the fire concerning bribery claims over the bidding for the 2022 World Cup, which is set to be held in Qatar.

Qatar beat Australia, Japan, South Korea and the United States to host the tournament, while its bid team have denied any form of wrongdoing.

"We have every expectation that Fifa will resolve this situation in an expedient and thorough manner," added the Coca-Cola spokesperson.

Adidas, who have been long standing sponsors of Fifa, want the issue resolved quickly in order to limit the damage done by the scandal.

"Adidas enjoys a long-term, close and successful partnership with Fifa that we are looking forward to continuing," an Adidas spokesman said.

"Adidas will be an official sponsor of Fifa World Cup 2014 in Brazil. Having said that, the negative tenor of the public debate around Fifa at the moment is neither good for football nor for Fifa and its partners."

Meanwhile, Emirates, who have only been an official partner of Fifa since the 2006 World Cup, said they were disappointed with the off the field issues surrounding the sport.

"We are disappointed with the issues that are currently surrounding the administration of the sport," a statement said.

"We hope that these issues will be resolved as soon as possible and the outcome will be in the interest of the game and sport in general."