The north London based side are in need of a miracle after suffering a disappointing at the hands of the La Liga giants at the Emirates.
Barcelona came away with a 2-0 win, both goal were scored by Leonel Messi.
Turan will be hoping to make an appearance after scoring an over-head kick during his sides 6-0 win over Getafe.
Arsenal boss Arsene Wenger is expected to field his strongest side despite the task at hand. Mesut Ozil is set to start in his favoured number ten position behind Olivier Giroud.
The 27-year-old has provided 19 assists and seven goals in 36 appearances for Arsenal this season.
Barcelona v Arsenal
Kick-Off: 19:45 (GMT)
Stadium: Camp Nou
Barcelona confirmed starting lineup: Ter Stegen, Rakitic, Sergio, Alves, Iniesta, Suárez, Messi, Neymar Jr, Mascherano, Alba. Mathieu
Arsenal confirmed starting lineup: Ospina, Monreal, Koscielny, Gabriel, Bellerin, Coquelin, Elneny, Sanchez, Ozil, Iwobi, Welbeck