A BBC investigation has accused three senior FIFA officials who will vote on the 2018 and 2022 World Cup bids this week of taking bribes in the 1990s.
The Panorama programme says it has evidence that 175 secret payments totaling $US100 million were made.
It alleges that Confederation of African Football chief Issa Hayatou, South American head Nicolas Leoz and Ricardo Teixeira of Brazil, took money from a sport marketing firm ISL which was awarded lucrative World Cup rights.
The three are current members of the executive committee of FIFA, world football's governing body, which will decide on Thursday which countries host the World Cups of 2018 and 2022.
All have denied any wrongdoing but have not commented further.
ISL collapsed in 2001. The alleged bribes date from 1989 to 1999, Panorama reports.