Fabio Capello insists he would not risk playing defender Phil Jagielka if he were less than 100% fit to face Spain at Wembley.
Capello will pair Jagielka with Joleon Lescott in central defence as England entertain the world champions. The move will attract David Moyes' interest given Jagielka has been playing recently only thanks to injections in a toe injury.
Everton's medical staff have been contacted by their FA counterparts to try and ease any fears about Jagielka's fitness on Merseyside. And Capello is adamant the 29-year-old is happy to play.
''Before I decide about a player, I always in my career, speak with the doctors,'' he said. ''I ask the doctor whether they can play or not. He says he can.
''Then I always speak with the player and ask whether they can play? If they are 100%? Not 90%, but 100%? Are you ready? He said yes. He will decide whether he takes an injection. But he trained normally, without one.''
Glen Johnson will return at right-back, meaning a place in central midfield for Manchester United teenager Phil Jones, who will be tasked with the job of shutting down Spain's vast array of star names.
It promises to be the biggest challenge of the former Blackburn man's career so far, with Capello admitting Spain are out on their own at present.
''No-one in the world is close to Spain. Not Holland. Not Germany,'' he said. ''Because their style is completely different. The Dutch and the Germans are playing well. But Spain's ball possession is really good.
''It is difficult to win the ball back because, technically, they are really good. For this reason, it's the most difficult game for me.''
And before anyone suggests simply copying the formula, Capello has warned them to forget it.
''You can't copy this style,'' he said. ''It's come from the academies. They've got eight players coming from Barcelona, four or five from Real Madrid. This style is normal for them. Without players of value it would probably be no good. But Spain have seven nominated for the Ballon d'Or. Every style is good if you have really good players.''