The Gunners have lost four of their last five Premier League matches – a run that includes three straight losses to Crystal Palace, Wolves and Leicester in which they conceded no fewer than nine goals.
They face a Valencia side who are also caught up in their own crowded battle for Champions League qualification in LaLiga.
Arsenal Team News
Mesut Ozil missed Arsenal’s 3-0 defeat at Leicester with a bruised foot and Unai Emery claimed the German would need to undergo tests on Monday and Tuesday in order to determine his availability for the visit of Valencia.
Juventus-bound Aaron Ramsey remains sidelined with a hamstring injury.
Arsenal vs Valencia Possible Line-ups
Arsenal XI: Cech, Koscielny, Monreal, Sokratis, Maitland-Niles, Kolasinac, Torreira, Xhaka, Ozil, Lacazette, Aubameyang
Valencia XI: Neto, Wass, Garay, Gabriel, Gaya, Torres, Parejo, Coquelin, Guedes, Gameiro, Mina