Eddie Nketiah serves the second of a three-match ban for his dismissal against Leicester, while the Gunners official line on Mesut Ozil's continued absence from the squad is that he is still suffering from "back soreness".
Midfielder James Milner is unlikely to be fit having missed the weekend draw with Burnley because of a minor muscle problem.
Manager Jurgen Klopp expects the 34-year-old to be ready to face Chelsea at home next week, however.
Provisional Arsenal squad: Martinez, Macey, Bellerin, Soares, Sokratis, Luiz, Holding, Mustafi, Kolasinac, Tierney, Xhaka, Guendouzi, Torreira, Ceballos, Maitland-Niles, Willock, Ozil, Nelson, Pepe, Aubameyang, Lacazette.
Provisional Liverpool squad: Alisson, Alexander-Arnold, Van Dijk, Gomez, Robertson, Fabinho, Wijnaldum, Keita, Salah, Firmino, Mane, Adrian, Williams, Lovren, Oxlade-Chamberlain, Minamino, Origi, Elliott, Jones, Shaqiri.