The England international was approaching his comeback to full training, however the 20 year old felt some pain in his ankle this week and was sent to a specialist on Friday.
There has yet to be a definite analysis and scale of his layoff, but Wenger has stressed that the layoff may not be as bad as the media is escalating it.
Speaking at the pre-match conference Wenger said:
It is a massive disappointment and I am really disappointed for him as well because he is a football animal. I am so sad that at that age you have to be out for such a long time without any obvious reason.
If you had told me that Jack would not have played one game by February I would have said that’s impossible.
We miss that little burst from Jack. Let’s hope it goes well and we have good news.
It’s impossible [for him] to play at the end of February. Even if we have some good news, I would say that’s impossible. From day one, when you are completely fit to practice again, to be match fit you count at least six weeks. [He is] gutted.
However Wenger refused to rule out Wilshere for the season and the upcoming Euro 2012 Championships.
Who would want to [write his season off]? I don’t want to and he doesn’t want to. If we have good news and he can move on, why should we do it [write him off]?
Yes, I feel for him and of course he wants to be in the big tournaments. I believe as well that he wants to play for Arsenal too. He grew up here remember.
Wilshere also took to social networking site Twitter to express his annoyance at his setback but has vowed to come back strong:
It is true I have had a set back [sic] I can’t tell you how long I have been set back because I don’t know! I am very annoyed but will stay strong.
It is essential that Wilshere recovers 100% as he has a long and exciting career ahead of him with Arsenal, but it is a shame that he will not return next month. Hopefully he can recover for some vital matches later on in the season. We wish him the best for a full recovery.