0435 GMT June 24, 2018
Villar gave a news conference on Monday warning that Spanish government interference at the RFEF could lead to FIFA taking away the country's spot at next year's tournament in Russia, ESPN reported.
FIFA sent a letter to the RFEF raising concerns regarding the state of the country's federation and reminding its member nation of its duty to manage its affairs without outside influence.
However, Tebas told Marca Radio, "It's a supine stupidity that Spain will not be at the World Cup and I hope the population doesn't believe it. Spain will be, and will win, the World Cup."
At the helm of the RFEF since 1988, Villar was reelected as president for an eighth term in May.
However, the 67-year-old was suspended from his duties two months later by Spain's top sports authority, Consejo Superio de Deportes (CSD), and is currently on bail awaiting trial on charges of improper management, misappropriation of funds, corruption and falsifying documents.
Villar said the move by the CSD to suspend him was "arbitrary" and an "injustice" without giving him the "possibility of presumption of innocence."
The government-run CSD, led by its president Jose Ramon Lete, requested in May that Villar's reelection be annulled and, if not, for Villar to face a vote of no confidence from the RFEF.