Arsenal goalkeeper Lukasz Fabianski has been ruled out of action for three weeks after suffering a thigh injury against Liverpool.

Wednesday night's match in the Carling Cup was Fabianski's first of the season after knee surgery.

He lasted the full 90 minutes and later expressed his delight at being back in the side.

But it has since emerged he will be absent from Arsene Wenger's side for a further stretch of games.

Discussing the blow to the Polish goalkeeper, manager Arsene Wenger said on Arsenal's official website: "We lost Lukasz Fabianski with a thigh injury.

"He will be out for three weeks. Of course, it is big disappointment - because he has just come back from injury."

In Fabianski's absence, Wenger will choose between Vito Mannone and Manuel Almunia when he selects his goalkeeper for the derby against Tottenham on Saturday.

Wenger has also ruled Jack Wilshere (ankle), Theo Walcott (knee), Denilson (back) and Tomas Rosicky (knee) out of his plans for the Emirates Stadium clash.