Ju Young Park will make his Champions League debut in Arsenal colours for the visit of Marseille to Emirates Stadium.
The South Korean international has made two appearances in a Gunners shirt so far - both arriving in the Carling Cup - and will take the place of captain Robin van Persie, who drops to the bench.
Carl Jenkinson returns from injury to take up his place at right-back, with Andre Santos continuing at left-back.
Team in full: Szczesny, Jenkinson, Vermaelen, Mertesacker, Andre Santos, Song, Ramsey, Arteta, Walcott, Gervinho, Park.
Substitutes: Fabianski, Koscielny, Djourou, Rosicky, Benayoun, Arshavin, Van Persie.Copyright 2017 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source