Shokdran Mustafi, Pierre-Emerick Aubameyang and Henrikh Mkhitaryan all scored to complete Arsenal's 3-0 win over Watford.
Mustafi opened the scoring when he latched on to Mesut Ozil's pinpoint cross to nod his side into the lead with just eight minutes gone.
Aubameyang then got in on the act when he rounded the keeper to tap home before Mkhitaryan swept home the simplest of finishes to make it a rout.