Arsène Wenger has given an update on the latest team news ahead of Tuesday's Champions League game against Bayern Munich: 

on the team news...
We have lost Kieran Gibbs from the squad on Saturday with an ankle problem. Laurent Koscielny is back in the squad, so the only change in the squad is Koscielny for Gibbs.

on Vermaelen playing at left back...
That is a possibility.

on the north London derby...
Gibbs has a chance for Sunday.

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 10 Mar 2014