Paulista debut for Gunners?
New signing Gabriel Paulista could make his debut in defence for the Gunners but midfielder Aaron Ramsey (hamstring) is out for around two weeks, while forward Alexis Sanchez may not be risked after a knock.
Jack Wilshere could return following a lengthy absence after ankle surgery, but Alex Oxlade-Chamberlain (groin) Mikel Arterta (ankle), Abou Diaby (calf) and Mathieu Debuchy (shoulder) are all still out.
Daniel Ayala is out for Boro with a thigh injury but veteran Jonathan Woodgate is in contention and Emilio Nsue has returned from African Nations Cup duty.
George Friend has recovered from a virus and Ryan Fredericks continues to battle an ankle problem, while on-loan Tomas Kalas is ineligible and Adam Forshaw is cup-tied.
Top scorers (all competitions):
- Arsenal: Alexis Sanchez (18)
- Boro: Grant Leadbitter (12)