Goalkeeper and Defence
GK – David Raya – the Spaniard is likely to come under pressure from corners and throw-ins so he will need to stay strong in those situations.
RB – Jurrien Timber – the fullback needs to build up an understanding with Gabriel Martinelli so they can cause problems with overloads on the right.
CB – William Saliba – the centre-back was sloppy in his last away match against Crystal Palace and he can’t afford to be so lax against a sharp Brentford forward line.
CB – Gabriel – the Brazilian will be hoping to cause more problems in the opposing box from corner kicks. He missed a sitter against Ipswich so he will be looking to put that right on Wednesday.
LB – Myles Lewis-Skelly – despite both Riccardo Calafiori and Kieran Tierney being available for selection, Arteta is right to keep faith in the 18-year-old who has been excellent when called upon.