Alexis returns to the starting lineup as one of four changes for tonight’s meeting with Bayern Munich.
David Ospina starts in goal, with Aaron Ramsey stepping in to partner Granit Xhaka in central midfield.
Theo Walcott also returns to the starting line up, with Alexis leading our attack.
Elsewhere, Mesut Ozil has recovered from illness to replace Alex Iwobi (illness) on the bench.
Arsenal XI: Ospina, Bellerin, Mustafi, Koscielny, Monreal, Xhaka, Ramsey, Ox, Walcott, Welbeck, Alexis
Subs: Cech, Gibbs, Gabriel, Lucas, Ozil, Giroud, Coquelin
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