Arsenal attacking midfielder Henrikh Mkhitaryan is close to making a return for the Gunners.
In one of his last interviews as Arsenal manager, the Frenchman confirmed that the 29-year-old has resumed training and will be back before the end of the month.
"We have some uncertainties about [Jack] Wilshere," Wenger is quoted as saying by Arsenal.com.
"It's a short-term one, a little ankle problem.
"Of course [Henrikh] Mkhitaryan is not back yet.
"[He] is running again. He has to progress in the next three or four days to see how much intensity he can have in his training sessions.
"[Return?] Possibly Thursday is the earliest I think.
[David] Ospina is available again.
"He [Aaron Ramsey] has not participated in full training but he's practising in non-contact, so he will be available for Sunday."