Mikel Arteta has proved to be ruthless since taking charge of Arsenal. The Spanish coach has essentially refused to manage certain players, instead demonstrating a preference to show them the door.
In January, Pierre-Emerick Aubameyang was allowed to join Barcelona after allegedly falling out with Arteta, and Mesut Ozil seemed to do the same last season before signing for Fenerbahce.
William Saliba is another player who has felt his wrath. The youthful centre-back has spent the season on loan at Marseille after initially experiencing a troublesome relationship with Arteta.