Arsenal enjoyed an unusually productive summer last year in terms of selling players, with Folarin Balogun, Granit Xhaka and Matt Turner all leaving for good fees. With the likes of Declan Rice, Kai Havertz and Jurrien Timber all being brought in, many Arsenal fans would agree that the squad, as a whole, was improved last summer with some good signings whilst also selling the right players at the right time. Moreover, those who left north London are now flourishing, with Xhaka this weekend winning the Bundesliga title with Bayer Leverkusen as Turner has established himself as a regular in the …