The Gunners are missing few first team players through injury while Arsene Wenger has decided to rest some of his stars for this tie.
Skipper Thomas Vermaelen has been included in the squad while young Serge Gnabry will play on the wings in place of injured Theo Walcott.
Nicklas Bendtner has made a return to Arsenal starting line-up after more than two years and will lead the attacking line-up for the North Londoners.
Fabianski, Mertesacker, Vermaelen, Arteta, Monreal, Bendtner, Jenkinson, Eisfeld, Gnabry, Hayden, Ryo.
Subs: Viviano (gk), Flamini, Park, Akpon, Bellerin, K Olsson, Iwobi
West Brom Line-Up:
L Daniels, Reid, Dawson, Lugano, Popov, Mulumbu, Dorrans, Sessegnon, Berahino, Sinclair, Long
Subs: Camp (gk), McAuley, J Olsson, Rosenberg, Amalfitano, Morrison, Jones.