The left-back damaged his thigh in his side's 3-0 win over Roma in Wednesday's Joan Gamper Trophy Final.
And the Catalan club have revealed that he has damaged the semimembranosus muscle in his right leg.
The 26-year-old will be out for around 10 to 15 days, which will see him miss both legs of the Supercopa de Espana against Athletic Bilbao.
