Football Association of Thailand (FAT) president Worawi Makudi insisted on Wednesday he had nothing to do with corruption in the game.
Seven Fifa officials, who are among 14 people indicted in the US for corruption, were arrested and detained by Swiss police at the request of US authorities after a raid at a luxury hotel in Zurich ahead of tomorrow's Fifa president election.
Mr Worawi, who is in Zurich, said he was not among the seven officials and threatened legal action against those who accused him of involvement in corruption.
Worawi: ‘Not among the accused’
"I have nothing to do with the matter," he said. Mr Worawi was a Fifa executive member until recently when he lost his seat in an election.
After the vote to select the 2018 and 2022 World Cup hosts, England, which lost out in the vote, accused Mr Worawi of seeking personal gain in exchange for his support.
Fifa and England later cleared him of any wrongdoing.
Meanwhile, Swiss prosecutors opened criminal proceedings into Fifa's awarding of the 2018 and 2022 World Cups, only hours after the seven officials were arrested pending extradition to the US in a separate probe of "rampant, systemic and deep-rooted" corruption.
Fifa, however, ruled out a re-vote of the world cups won by Russia in 2018 and Qatar in 2022.
The Swiss prosecutors' office said in a statement they seized "electronic data and documents" at Fifa headquarters in Zurich on Wednesday as part of their probe.
The Swiss announcement came only hours after the 14 people were indicted in the US for corruption.
The US Department of Justice said in a statement that two current Fifa vice presidents were among those arrested and indicted, Jeffrey Webb of the Cayman Islands and Eugenio Figueredo of Uruguay.