Team news
Arsenal are without Hector Bellerin and Granit Xhaka (both suspended), while Nicolas Pepe is available after serving a three-match ban. David Luiz (head) is back in training and will be assessed.
Ralph Hasenhuttl reports no fresh injury concerns for Southampton.
Did you know?
Arsenal are unbeaten in all 21 of their Premier League home matches against Southampton (W15 D6), the most home contests a team have played against another in the competition without ever losing.
The Gunners have lost just one of their 21 Wednesday PL fixtures at Emirates Stadium (W14 D6), with that defeat coming back in March 2016.
Danny Ings has scored three PL goals in three appearances for Southampton against Arsenal. No Saints player has ever scored four goals against the Gunners in the competition.
With the 96th PL chance he had created, Southampton’s Oriol Romeu registered his first assist against Sheffield United in their last match, in his 193rd appearance. Among outfield players with at least one assist, only Stephane Henchoz (234th match) had a longer wait for his first assist in the competition.
Match officials
Referee: Paul Tierney. Assistants: Dan Cook, Sian Massey-Ellis. Fourth official: Andre Marriner. VAR: Craig Pawson. Assistant VAR: Neil Davies.
