The France centre-back was forced to withdraw during his country's 2-1 defeat to Germany as a calf injury ended his eighth appearance for Les Bleus.
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Midfielder Ramsey had to pull out of the Wales squad on the day of their fixture against Austria due to a calf strain in a game that Chris Coleman's men went on to win 2-1 thanks in large part to Gareth Bale.
Walcott played 76 minutes of England's 2-1 triumph over Brazil at Wembley before being replaced by Aaron Lennon but there were reports that the in-form forward was seen hobbling after the match.
The likes of Santi Cazorla travelling all the way to Doha in Qatar for Spain's win over Uruguay could also add up to give the Frenchman a headache when his side travel to Wearside on Saturday.