The club’s photographer who was also at the training ground released the pictures.
ST ALBANS, ENGLAND - FEBRUARY 01: Pierre-Emerick Aubameyang of Arsenal during his 1st training session at Colney on February 1, 2018 in St Albans, England. (Photo by Stuart MacFarlane/Arsenal FC via Getty Images) *** Local Caption *** Pierre-Emerick Aubameyang 
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