Arsenal are looking to claim their third win in four PL matches while Cardiff City are aiming for their second win in eight.
Arsenal's defence will be without Sokratis (ankle), Hector Bellerin and Rob Holding (both knee), while Laurent Koscielny (jaw) is also a doubt.
Nacho Monreal (ankle) and Konstantino Mavropanos (groin) are back in contention after lengthy spells on the sidelines.
Henrikh Mkhitaryan (foot) is back in training but Danny Welbeck (knee) is out.
Cardiff are likely to be without defender Sean Morrison, who has had an operation to remove his appendix.
Jazz Richards (fitness) and Kenneth Zohore (thigh) are doubts but Harry Arter (groin) could return.