Team news
West Bromwich Albion will again be without Jake Livermore (suspended), while Hal Robson-Kanu and Kyle Bartley are being monitored.
David Luiz, Willian and Gabriel could all be back for Arsenal. Bukayo Saka will be assessed after a heavy challenge in the win at Brighton & Hove Albion.
Did you know?
West Brom are unbeaten in their last three Premier League home matches against Arsenal, winning two and drawing the other.
Albion have lost their last three PL home fixtures by an aggregate score of 13-1, conceding three or more goals in each defeat.
Arsenal have scored in all 24 of their PL meetings with West Brom, the best 100 per cent scoring record by one side against an opponent in the competition’s history.
Arsenal's two PL wins in their last two fixtures matches their total from their previous 12 (W2 D2 L8).
Match officials
Referee: Martin Atkinson. Assistants: Constantine Hatzidakis, Harry Lennard. Fourth official: Darren England. VAR: Jonathan Moss. Assistant VAR: Stephen Child.