Olivier Giroud makes his first Arsenal start in three months to hand a boost to the injury-hit Gunners at West Brom.
The striker had been out with a broken leg since August.
Arsenal, without the injured Jack Wilshere after his ankle surgery, have recalled Santi Cazorla while Emiliano Martinez starts in goal with Wojciech Szczesny out with a pelvis injury.
#Arsenal team to play West Brom: Martinez, Chambers, Mertesacker, Koscielny, Monreal, Flamini, Ramsey, Welbeck, Alexis, Cazorla, Giroud
- Arsenal FC (@Arsenal) November 29, 2014
Laurent Koscielny replaces Kieran Gibbs, while Mikel Arteta was ruled out with a calf problem meaning Mathieu Flamini starts.
Saido Berahino is in for West Brom after the revelations of his arrest for alleged drink driving this week.
James Morrison had been struggling with illness and was sidelined while Youssouf Mulumbu replaces Chris Baird after being left out in the 2-0 defeat to Chelsea last week.
With Claudio Yacob suspended Sebastien Pocognoli returns after recovering from a hamstring injury.
Albion v @Arsenal: Foster, Wisdom, Lescott, Dawson, Pocognoli, Gardner, Mulumbu, Brunt, Dorrans, Sessegnon, Berahino. #COYB #WBAARS
- West Bromwich Albion (@WBAFCofficial) November 29, 2014