With Alex Oxlade-Chamberlain, Gervinho, Kieran Gibbs and Abou Diaby all out injured, Arsene Wenger will need Arsenal to dig deep to get a result against Schalke tonight.
The Gunners will be out for revenge this evening after the last game between the two sides, in which Shalke won 2-0, ended Arsenal's 45 match unbeaten run at home against foreign clubs.
Jack Wilshere's recent return will be a boost after his 15 months injury left the Gunners limp in the middle of the park.
KICK-OFF: Tuesday, 7.45pm
Arsenal 0 Schalke 2 (Huntelaar, Afellay), Champions League, Group Stage, 24 October 2012
Schalke 3 (Mulder, Vermant, Moller) Arsenal 1 (Wiltord), Champions League, Group Stage, October 2001
Arsenal 3 (Henry 2, Ljungberg) Schalke 2 (Hoogdalem, Mpenza, Champions League, September 2001
Arsenal have won just seven of their previous 24 games against German opposition.
Schalke are tough to beat in this competition, losing just four of their last 25 European matches.