Williams reported for training camp at the national team base in Las Rozas, near Madrid, but he was released "following talks between the medical services of his club and the national team," said a Spanish football federation statement.

Sergio Gomez of Real Sociedad, who was part of the Olympic gold medal winning side, has been called up to replace Williams for the two matches in Murcia and Cordoba.

Winger Williams was named man of the match after scoring the opener when Spain beat England 2-1 in Berlin in July, and along with Lamine Yamal of Barcelona, is seen as the future of the national team.