Switzerland have suffered another injury blow after it was revealed Philippe Senderos will be sidelined for the next two games at least and is likely to miss the rest of the World Cup.

Senderos lasted just 36 minutes of Wednesday's 1-0 victory over Spain before suffering the same ankle injury that ruled captain and star striker Alexander Frei out of their opener.

While Switzerland welcome Frei back to training on Friday, the Fulham defender's injury is more serious and he could even miss their last-16 match should Ottmar Hitzfeld's side progress.