Eduardo da Silva will be available for weekend selection despite reports the Croatia international had suffered a further injury setback.
Eduardo was initially named on the bench for the Gunners' trip to Celtic in midweek, but was replaced by Jack Wilshere at the last minute.
Gunners boss Arsene Wenger told the club's official website: "Eduardo had a tight groin in the warm-up and he felt he could not play. He had no power and we had to change quickly."
"I don't believe we have anyone injured from Tuesday night's game at Celtic. Eduardo will be back in contention, but Theo Walcott will not be back at all. [Tomas] Rosicky, [Johan] Djourou, [Samir] Nasri, [Lukas] Fabianski - they will all be out," said Wenger.
"There is a slight concern [over Walcott's back injury] but we believe it is a question of days and not of weeks.
"We will see [if he is fit to face Manchester United next Saturday]. It is always difficult to set a date. I thought he would be available for Celtic, I thought he would be available for Everton, but he wasn't. That's why we will be cautious."