DUBLIN, IRELAND – AUGUST 01: (L-R) Pierre-Emerick Aubameyang and Mesut Ozil of Arsenal during the Pre-season friendly between Arsenal and Chelsea on August 1, 2018 in Dublin, Ireland. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images) *** Local Caption *** Pierre-Emerick Aubameyang;Mesut Ozil;Oezil

DUBLIN, IRELAND – AUGUST 01: of Arsenal during the Pre-season friendly between Arsenal and Chelsea on August 1, 2018 in Dublin, Ireland. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images)

DUBLIN, IRELAND – AUGUST 01: The Arsenal team line up before the Pre-season friendly between Arsenal and Chelsea on August 1, 2018 in Dublin, Ireland. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images) *** Local Caption *** Arsenal team

DUBLIN, IRELAND – AUGUST 01: Arsenla Head Coach Unai Emery before the Pre-season friendly between Arsenal and Chelsea on August 1, 2018 in Dublin, Ireland. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images) *** Local Caption *** Unai Emery