Arsenal manager Arsene Wenger says midfielder Jack Wilshere could start tomorrow against Galatasaray in the Champions League.
The Englishman was a forced substitute during last Saturday's North London derby and will undergo a late fitness test on Wednesday to determine if he has fully recovered to start the game.
"Jack Wilshere is in the squad for tomorrow. Will I start him? I don't know yet but he's in the squad," Wenger said during Tuesday's press conference.
"I left Abou Diaby out as well because he's not completely there yet."
Asked how long Aaron Ramsey will be out action, Wenger said: "We lost Mikel Arteta [calf] and Aaron Ramsey [hamstring] in our last game and it could have been three because Wilshere was a doubt for a long time but he recovered quite well.
"To be generous with time, let's say four weeks [for Ramsey's recover]. If all goes well, three.
"After the international break hopefully he will not be far away. Sometimes the international break is welcome! It is the same for Arteta, [he will come back] a bit quicker maybe."
Wenger said the Gunners will welcome striker Theo Walcott back after the international break, almost a year since the 25-year-old suffered the knee injury that ruled out of the World Cup finals.
"[Theo] Walcott is joining in full training next week. It's very good news," added Wenger.
"Serge Gnabry as well. Theo's return is a big thing for us.
"Let's not forget that he got injured on January 1 and we are now in October. That's 10 months and we had to wait for a long time."
