Arsenal could be set for a busy summer in terms of both arrivals and departures, and some unpopular exits may be inevitable. With Mikel Arteta’s side challenging for the title, and expecting to do so again next season, top-level reinforcements would help them in this regard, and several exits will be necessary to facilitate this. It already appears that the homegrown trio of Eddie Nketiah, Reiss Nelson and Emile Smith Rowe could all leave, with their potential sales giving Arsenal a major boost when it comes to profit and sustainability rules. Other departures of popular players such as Aaron …