According to L'Equipe
While is pending the official confirmation from Barça's part, Jérémy Mathieu should be out between 3 and 4 weeks because of the lesion he suffered during France's friendly game against Russia. According to what publishes the daily L'Equipe, the centre-back suffers a tear of the left internal meniscus as a result of the injury he endured alone 8 minuted after coming on to play.
This means Mathieu will miss El Clasico on Saturday against Madrid, both legs of the Champion's League quarter-finals against Atlético and some more games in La Liga. Without the Frenchman, Bartra and Vermaelen will have to fight for the 3rd centre-back position behind Mascherano and Piqué. Moreover, Luis Enrique also lost the option of putting Mathieu as a left-back, at a position where Barça has got Adriano out injured for ten days and Jordi Alba suffering pain on his ankle.