MADRID, Sept. 18 (Xinhua) -- Real Sociedad suffered a blow to their hopes of reaching the knockout phase of the Champions League on Wednesday when it was confirmed midfielder Estaban Granero will be out of action for around six months.
The former Real Madrid player, who is on loan from English side, Queens Park Rangers, broke the cruciate ligament in his right knee shortly after entering Tuesday night's Champions League debut at home to Ukrainian side, Shakhtar Donetsk.
Two goals from Shakhtar striker Alex Teixeira sent the Basque side crashing to defeat in the game in which Real Sociedad paid for their lack of European experience.
Granero had entered the game as an 81st minute substitute for Ruben Pardo, but seemed to damage his knee very soon afterwards.
Tests carried out on Wednesday morning have confirmed the worst as confirmed by the club.
"He will need an operation and until that happens, he will undergo therapy which stimulates and maintain the neuromuscular control of the articulation," confirmed the Real Sociedad website.
Granero is not the only casualty from Tuesday night as fellow midfielder, Markel Bergara also ended the game with physical problems after appearing to twist his ankle in the first half.
Real Sociedad now have two away matches in Europe and will need to take points from their next two matches, which are away to Bayer Leverkusen and Manchester United.