Arsenal looks to carry the form of a promising midweek win to league play when it welcomes Watford to the Emirates Stadium on Sunday (Watch live at 9:30 a.m. ET on NBCSN and online via NBCSports.com).
The Gunners won 2-0 in Milan in the first leg of their Europa League Round of 16 match on Thursday, and test their depth with three young players on the bench.
Watford will hope to be the fourth-straight side to beat Arsenal in the Premier League.
Arsenal: Cech, Maitland-Niles, Holding, Mustafi, Kolasinac, Elneny, Xhaka, Ozil, Iwobi, Mkhitaryan, Aubameyang. Subs: Ospina, Chambers, Willock, Nelson, Nketiah, Wilshere, Welbeck.
Watford: Karnezis; Femenía, Prödl, Mariappa, Holebas; Doucouré, Capoue; Janmaat, Pereyra, Richarlison; Deeney. Subs: Bachmann, Britos, Hughes, Carrillo, Sinclair, Gray, Okaka.