Arsenal have rung the changes after their Europa League victory over AC Milan.
David Ospina, Calum Chambers, Laurent Koscielny, Aaron Ramsey, Jack Wilshere and Danny Welbeck have all been replaced in the starting XI after the 2-0 win at the San Siro.
In come Petr Cech, Ainsley Maitland-Niles, Rob Holding, Alex Iwobi, Mohamed Elneny and Pierre-Emerick Aubameyang.
Arsenal: Cech, Maitland Niles, Holding, Mustafi, Kolasinac, Elneny, Xhaka, Ozil, Iwobi, Mkhitaryan, Aubameyang
Watford: Karnezis, Femenia, Prodl, Mariappa, Holebas, Doucoure, Capoue, Janmaat, Pereyra, Richarlison, Deeney
The game is live on Sky Sports and UK subscribers can live stream through the Sky Go and Now TV apps. But you can, of course, follow all the action as it happens right here with Mirror
Arsenal's performance has been far too polite, with the Gunners dominating proceedings, taking the lead but then missing key opportunities and then taking their foot off the gas. That lack of ruthlessness has been ever-present from the Gunners this season and it's seen the nervy atmopshere at the Emirates Stadium remain.