EARLY TEAM NEWS: ARSENAL
Arsenal have a defensive conundrum with Sokratis Papastathopoulos (ankle) out for up to a month and Laurent Koscielny (jaw) likely to miss out.
Right-back Hector Bellerin, centre-back Rob Holding (both knee) and Danny Welbeck (ankle) are long-term absentees, while Henrikh Mkhitaryan (ankle) is back in training.
EARLY TEAM NEWS: CARDIFF
Neil Warnock says some players have been affected more than others following Emiliano Sala’s disappearance, and he will take that into consideration before selecting his side to play at the Emirates.
Cardiff captain Sean Morrison is out as he recovers from an appendicitis operation.
ARSENAL TEAM NEWS
Starting XI: Leno, Lichtsteiner, Mustafi, Monreal, Kolasinac, Elneny, Guendouzi, Torreira, Ozil, Lacazette, Aubameyang.
Subs: Cech, Jenkinson, Mavropanos, Xhaka, Ramsey, Nketiah, Iwob
CARDIFF TEAM NEWS
Starting XI: Etheridge, Peltier, Manga, Bamba, Bennett, Arter, Gunnarsson, Ralls, Reid, Paterson, Niasse.
Subs: Smithies, Cunningham, Mendez-Laing, Healey, Harris, Hoilett, Zohore.