Arsenal left-back Nacho Monreal is set to miss the start of the new season due to a back injury.
Monreal, 27, signed for Arsenal from Malaga in January and impressed for Arsene Wenger's side during his ten Premier League appearances for the club.
But the Spain international, who represented his nation at the Confederations Cup, is set to miss the beginning of the 2013-14 campaign "after damaging a disc in his back", according to the Daily Mirror.
Wenger is already set to be without Thomas Vermaelen for the start of the term, meaning he is relying on left-back Kieran Gibbs to remain available for selection.
Wenger is quoted by the Daily Mirror as saying: "Monreal has had an injection and it looks like he will miss the start of the season and of course we have lost one left back and that's a position where we are a bit exposed.
"Vermaelen can play there, he is injured. Monreal can play there, he is injured. At the moment we only have Kieran Gibbs who can play at left back."