A reminder of those teams as they line up in the Emirates Stadium tunnel:
Arsenal Raya; White, Mosquera, Hincapie, Calafiori; Odegaard, Zubimendi, Rice; Madueke, Merino, Martinelli.
Substitutes Arrizabalaga, Saka, Gabriel Jesus, Eze, Timber, Gyokeres, Norgaard, Nwaneri, Lewis-Skelly.
Brentford Kelleher; Kayode, van den Berg, Pinnock; Ajer, Janelt, Yarmolyuk, Ouattara, Jensen; Henry, Schade.
Substitutes Valdimarsson, Henderson, Thiago, Onyeka, Collins, Lewis-Potter, Damsgaard, Arthur, Donovan.
Referee Tony Harrington (Cleveland)
