Frozen out Barcelona winger Ibrahim Afellay is undergoing thigh surgery.

The 27-year-old has struggled for fitness since joining the Catalan giants from PSV Eindhoven in 2011, missing almost the entire 2011/12 season due to an anterior cruciate ligament injury.

"Ibrahim Afellay will have an operation this Thursday, August 22nd, on a chronic muscular injury in his right quadricep," said a statement on the club's website.

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