Arsène Wenger revealed the following team news ahead of the Wolves game:

on the Wolves game...
Johan Djourou has a little chance to come back for the Wolves game. Apart from that nobody got injured the other night against Aston Villa but we had bad news yesterday for Kieran Gibbs, who had surgery on his left groin. He will be out for a month.

on Kieran Gibbs...
It was a blow but first what is important is that if he cannot play you have to make the decision that we had to make and arrange surgery for him. Hopefully it will only be one month because Santos will not come back before March.

on Bacary Sagna’s return to training...
You could see that he's a bit ahead of schedule. We have to [be careful] but physically he will be ready very quickly because he worked very hard in the gym. We think the end of January is a reasonable target for him.

Copyright 2014 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source 23 Dec 2011