"Basically, we have the same squad available as we had for Moscow," admitted Wenger.
England defender Sol Campbell, who has missed Arsenal's last two games following the untimely death of his father, is also a doubt for the vital Premiership match.
Wenger added: "Sol has a chance to be back. He is available and has been back in full training all week. I still have to make a decision as to whether he is fit enough and mentally ready to play."