Arsenal's season sprung into life as they recorded their first Premier League win of the season with a 3-1 victory at Watford.
Having lost at home to Liverpool and drawn 0-0 at champions Leicester, Arsene Wenger saw his side dominate the first half at Vicarage Road, as an early Santi Cazorla penalty was added to by Alexis Sanchez and Mesut Ozil.
Watford, still looking for a win under Walter Mazzarri, looked better after the break as club-record signing Roberto Pereyra came off the bench to grab a consolation.
The Gunners, who are likely to add defender Shkodran Mustafi and forward Lucas Perez to their ranks in the coming days, were ahead in the ninth minute after Nordin Amrabat crashed into the back of Sanchez and, after a delay, referee Kevin Friend pointed to the spot.