Arsene Wenger has confirmed Cesc Fabregas will miss Saturday's clash against Everton at the Emirates Stadium but the Arsenal manager has been boosted by Tomas Rosicky's return.
Fabregas, 22, aggravated his hamstring injury during a cameo against Aston Villa 11 days ago and there were hopes of the Spain midfielder returning to face David Moyes' men - but instead he will be pencilled in for the Barclays Premier League trip to Bolton the following weekend.
"Basically [our squad] is exactly the same as it was before the Bolton game, apart from Tomas Rosicky," said Wenger. "We have a good hope that we will get him back in the squad. But he is the only one that should come back."
He added: "He missed out at West Ham because of a groin injury. He has little problems but when you go back to the scan it always comes back reassuring.
"I believe that is down to the fact that he has not played for such a long time and that his body has to readapt again. But now he is back and completely fit."
Wenger added: "Fabregas should be available for Bolton and (Gael) Clichy is not far."
Alex Song and Emmanuel Eboue are at the African Nations Cup but Wenger's options have at least been bolstered by Rosicky's return from a groin problem in the same week the Czech Republic midfielder signed a new contract at the club.
Denilson and Andrey Arshavin were scheduled to return for the midweek clash at home to Bolton that was eventually postponed due to snow.
It means Nicklas Bendtner (groin), Theo Walcott (side strain), Gael Clichy (back), Kieran Gibbs (foot), Robin van Persie (ankle) and Johan Djourou (knee) remain out.
The extent of Bendtner's groin problem will be discovered later this week when he undergoes tests.
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