Barcelona forward Ibrahim Afellay will spend around six months on the sidelines after undergoing knee surgery, the Spanish giants have confirmed.
The 25-year-old, who joined Barca from PSV Eindhoven in December, picked up an injury to his left knee during a training session late last month.
He went under the knife at a Barcelona hospital on Monday to repair a torn ligament and is now facing a lengthy recovery.
"During the first two months he will undergo physiotherapy and work on mobility," Ricard Pruna, one of the doctors who operated on the player, told the club's official website.
"The third and fourth month is a very active phase, mainly in the gym.
"In the fifth and sixth month he will do exercises adapted to the pitch."
Afellay had only recently returned to Pep Guardiola's line-up after a hamstring injury frustrated his start to the campaign.
He has featured twice for the Primera Liga side this season, as a substitute against AC Milan and Osasuna.
Defender Eric Abidal is also facing a short stint on the sidelines, with the Frenchman expected to be out for around 10 days with a muscle problem in his thigh.
Meanwhile, Barca midfielder Andres Iniesta has been given the green light to return to action after recovering from a hamstring tear.
The World Cup winner has been absent since suffering the injury during last month's UEFA Champions League draw with Milan.
Barca are next in action against Racing Santander on October 15th when La Liga resumes after the international break.
Iniesta was not among those called up when Spain coach Vicente del Bosque announced his squad last Friday for the upcoming Euro 2012 qualifiers against Czech Republic and Scotland.