Gunners win their first Premier League game this season with Goals from Cazorla, Alexis and Ozil which were enough for Arsenal, despite the hosts making a second-half resurgence which provided Pereyra’s debut goal.
Arsenal substitutes: Gibbs, Wilshere, Giroud, Ospina, Chambers, Coquelin, Elneny.
Arsenal starting line-up (4-2-3-1): Cech; Bellerin, Holding, Koscielny, Monreal; Xhaka, Cazorla; Walcott, Ozil, Oxalde-Chamberlain; Alexis.
Watford substitutes: Janmaat, Success, Zuniga, Sinclair, Watson, Pantilimon, Pereyra.
Watford starting line-up (3-5-2): Gomes; Kabasele, Kaboul, Prodl; Amrabat, Behrami, Capoue, Guedioura, Holebas; Ighalo, Deeney.