"My decision (to start Valdes) doesn't mean anything," Del Bosque said. "I'm not saying that he will or won't play the next game, but this is how we will treat the situation."
Valdes made his 18th appearance for Spain against Belarus, while Casillas has earned a record 150 caps for his country.
VALBUENA OR NASRI?
The re-emergence of Samir Nasri in the France midfield gives coach Didier Deschamps a headache.
Nasri, who was banned for three matches after last year's European Championship for insulting a journalist, has been excellent in his return. He was one of France's best players in the 6-0 rout of Australia on Friday, playing behind striker Olivier Giroud in a playmaker's role and setting up one of Giroud's two goals.
But playing Nasri likely means dropping Mathieu Valbuena, who, along with Franck Ribery, has been one of France's best players over the past year.
"The coach wanted to rest me against Australia and have a look at something else," Valbuena said. "It's not up to me to say whether it's unfair or not."
A HERO'S WELCOME
Andres Iniesta is enjoying a quiet start to the season, but there will be no calm when he takes to the field at the Carlos Belmonte Stadium.
Iniesta, who was born in the nearby village of Fuentealbilla, invested nearly 250,000 euros ($340,000) in his hometown club to save it from the drop after it failed to pay its players.
"Without a doubt it will be very special," said Iniesta, who is marking the occasion at his local vineyard by offering a package that includes a special tour, wine tasting session and tickets for the game.
Iniesta, who made his Spain debut at the stadium in 2006, can also help secure another contract for Del Bosque, who is reportedly set to sign a two-year extension once Spain qualifies for the World Cup. That would leave Del Bosque, who has been in charge since 2008, leading the defending champion's drive to win an unprecedented third straight European Championship in 2016.
AP Sports Writer Jerome Pugmire contributed to this report from Paris.
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