Arsene Wenger stated this afternoon that Song and Djourou are also available - one of them will no doubt partner Vermaelen at centre back following Koscielny's red card at Anfield.
The boss said:
"Fabregas and Van Persie are back in the squad. Robin was already last week, now they both are.
"Song is back in the squad too, Djourou is in the squad, but of course we lose Koscielny to suspension.
"Denilson is still working, he is back in normal training but he still needs to work on his fitness. He will need one more week.
"We lost unfortunately Nasri from last week because he has a cartilage injury and much more terrible for us is to lose Frimpong with a cruciate, done in training on Wednesday morning. He will be out for at least six months."