The north London club sit in second place in Group B with six points from their three games but with Olympiakos breathing down their neck as they head to Germany
Howedes, Papadopoulos, Fuchs, Matip
Jones, Holtby, Barnetta
Farfan, Huntelaar, Afellay
Jenkinson, Vermaelen, Koscielny, Santos
Arteta, Coquelin, Cazorla
Walcott, Giroud, Podolski
Schalke have no new injury or suspension worries, so can expect to name a full-strength side for this game.
The highly-rated Lewis Holtby should continue in the midfield for the hosts, with support coming from Jermaine Jones and Tranquillo Barnetta.
Up front, Klaas-Jan Huntelaar should lead the line, supported by Jefferson Farfan and Barcelona loanee Ibrahim Afellay.
Meanwhile, the Gunners will be without midfielder Aaron Ramsey (groin) after he was substituted in their defeat to Manchester United.
Alex Oxlade-Chamberlain remains a doubt (hip), but may recover in time to make the bench and is expected to be fully fit for their next Premier League match at home to Fulham.
Kieran Gibbs is also nearing full fitness, but this game will come slightly too soon for the left-back as he recovers from a thigh injury.
|DID YOU KNOW?|
- Schalke sit second in the Bundesliga but are seven points behind leaders Bayern Munich after losses to Jupp Heynckes' side and Hoffenheim this season.
- The Royal Blues won the Uefa Intertoto Cup in two consecutive seasons, one of only three teams to do so, in both 2003 and 2004.
- Schalke goalkeeper Timo Hildebrand holds the Bundesliga record for not conceding a goal, going 884 consecutive minutes without being beaten during the 2003-04 season.
- These teams have faced each other in the group stage already, with Schalke taking a 2-0 victory at the Emirates thanks to goals from Huntelaar and Afellay.
- Arsenal's 7-0 win over Slavia Prague in October 2010 is the joint second-highest margin of victory in the history of the Champions League.
- Two Gunners managers have died while in the job – Herbert Chapman and Tom Whittaker.
- Marouane Chamakh's (pictured) goals against Reading in the Capital One Cup were his first for Arsenal since scoring against Blackburn in September 2011.