The much-ridiculed FIFA world rankings are to be revised and the new system unveiled on July 6, FIFA head Sepp Blatter announced on Friday.

Germany in particular have complained that them being 19th in the rankings while Mexico are fourth and the United States fifth is unfair and that they have been penalized for playing friendly matches for the past two years.

"The rankings system is to be modified," said Blatter. "It will only take into account the results from the last four years and not eight.

"The new format will be unveiled on July 6," added the Swiss, who highlighted the case of fifth-ranked the United States as a case in point declaring that they had been hugely disappointing.