Villa suffers a bruised thigh that ruled him out of the 1-0 friendly victory over USA on Wednesday.

However, manager Luis Aragones is confident that the Valencia striker will be available for Spain's opening game against Russia on Tuesday.

Villa, 26, is the main partner to star striker Fernando Torres.

Reserve forward Sergio Garcia also trained on the sidelines because of a calf injury.

Spain play in Group D that also includes Sweden and champions Greece.