Willian has been handed a start in Arsenal's crucial Europa League last-16 tie against Olympiacos.
The 32-year-old played an integral part in the Gunners' late rally against Benfica in the previous round and the Brazil international is rewarded with a place in the XI.
Hector Bellerin comes in at right-back with David Luiz partnering his compatriot Gabriel at centre back.
Granit Xhaka and Thomas Partey start alongside eachother in central midfield, with Martin Odegaard and Bukayo Saka featuring in attack.
Gunners captain Pierre-Emerick Aubameyang leads the line up top against his close friend and former Arsenal centre back Sokratis Papastathopoulos who starts for the hosts in defence.
Arsenal XI: Leno; Bellerin, David Luiz, Gabriel, Tierney; Xhaka, Thomas; Saka, Odegaard, Willian; Aubameyang
Subs: Ryan, Hein, Cedric, Chambers, Holding, Pablo Mari, Elneny, Ceballos, Smith Rowe, Pepe, Martinelli, Lacazette.
