One of the most important decisions Mikel Arteta had to make in his managerial career so far was to exile and then sell Pierre-Emerick Aubameyang while the Gabon international was Arsenal captain.
Since taking the reins at the Emirates in late 2019, Arteta has not exactly suffered fools gladly nor has he been afraid to cast aside the biggest players in the squad - just ask Mesut Ozil. But it has been his relationship with Aubameyang that has generated the most conversation, with the pair seemingly hitting it off at the start only to fall out in spectacular fashion.
A year-and-a-half after the 33-year-old signed a mega-money contract extension at the Emirates, Aubameyang had joined Barcelona for free having been forced to train alone in north London because of, as Arteta put it, his "latest disciplinary breach".