From Sky:

Arsenal team news
Team to play AC Milan: Raya, White, Saliba, Calafiori, Zinchenko, Norgaard, Rice, Nwaneri, Saka, Martinelli, Havertz.

Subs: Kepa, Setford, Rojas-Fedoruschenko, Nichols, Kiwior, Salmon, Lewis-Skelly, Zubimendi, Lokonga, Copley, Merino, Dowman, Odegaard, Kabia, Nelson, Trossard, Harriman-Annous.