Aaron Ramsey will miss Tuesday's Champions League game against Schalke with a groin strain.

The Wales midfielder was substituted during the second half of the defeat at Manchester United and will be replaced by Johan Djourou for the trip to Germany.

Arsène Wenger has made one further change from Saturday's game. Damian Martinez, who is ineligible for the Champions League, has been replaced by James Shea.

Arsenal squad:

Vito Mannone

James Shea

Bacary Sagna

Thomas Vermaelen

Mikel Arteta

Johan Djourou

Per Mertesacker

Laurent Koscielny

Jack Wilshere

Olivier Giroud

Santi Cazorla

Andre Santos

Lukas Podolski

Theo Walcott

Andrey Arshavin

Carl Jenkinson

Francis Coquelin

Marouane Chamakh

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 5 Nov 2012