But why worry, you honestly think he will join Arsenal? Same Arsenal that have Sanchez and Özil making murmurs to not renew contracts/leave because they fed up of not competing? Morata only said CL clubs, so Arsenal are included per automatum, but in this case only City should worry us, in CL, have a new big popular coach, can drop 60-70m on a player like its sunday brunch order, and theres several spanish/spanish players and staff in the club. Even the directors are spanish...
But wait...there is Aguero there, albeit injury prone, its aken to going back to Real and being benched by the superior Benzema and Ronaldo. Makes no sense. Only Arsenal offers direct availability to get starting spot, and I already mentionned why it makes sporting sense for him to go there considering his options.
But yeah either way I dont see him staying in Juve so all is just speculating on his future destination.