Vito Mannone will continue to be in front of goal due to the absence of Manuel Almunia.
Arsene Wenger said:
"Unfortunately, we lost Eduardo after he came on [against Olympiacos]," ArsÃ¨ne Wenger told Arsenal TV Online on Thursday.
"It was a gamble to play him and unfortunately his muscle injury got worse. He will be out. It is the same thigh muscle [as before] and has recurred a few times now. But Walcott and Bendtner are available."
After 5 straight wins, the Arsenal manager said:
"It is going very well," said Wenger. "Our overall performance in the games has been quite good, very promising.
"Even when we had a little disappointment in those two games, the quality of the performance was still there. Since then we have transformed that disappointment into more desire and come back every time.
"Do not forget we lost at Man City, and straight after that we were 2-0 down at Standard Liege but came back to win. That is why I believe the spirit is there and the quality is there. We know it is a very big and important season for us but I am confident we will do well."
Predicted Arsenal XI:
Sagna - Gallas - Vermaelen - Clichy
Fabregas - Song - Diaby
Bendtner -van Persie -Arshavin
Predicted score: Arsenal 4-0 Blackburn
Arsene Wenger looks back at his first game against Blackburn 13 years ago as he prepares to face the Ewood Park side again.