Palace v Arsenal preview
Arsenal will welcome back Mathieu Flamini for Saturday's game against Crystal Palace at Selhurst Park, but fellow midfielder Jack Wilshere will undergo a fitness test.
Flamini missed the Dortmund defeat after suffering concussion against Norwich last weekend, while Wilshere was withdrawn in midweek after jarring his ankle.
Mesut Ozil is available after Arsene Wenger said the Germany international had been feeling sick prior to a below-par display against Dortmund.
Crystal Palace caretaker manager Keith Millen has no new injury concerns as he takes charge of the Eagles for the first time.
Millen replaced Ian Holloway on a temporary basis and has an almost fully-fit squad to choose from for the visit of the Premier League table-toppers.
Only captain Paddy McCarthy, who has returned to training after a prolonged spell on the sidelines with a groin injury, and Glenn Murray (knee) remain sidelined.