French giants Paris Saint-Germain could now be about to cause some frustration for both Arsenal and Mikel Arteta in the transfer market. Unlike last season when they concluded their business very early, Edu and Arteta are undergoing a different approach at Arsenal this summer. Conscious of their already large squad and adhering to future PSR calculations, Arsenal want to sell players before they buy replacements. After they conclude a deal for Riccardo Calafiori, Arsenal still want to buy three more players, but will be patient. Arsenal’s imminent purchase of Calafiori is an exception in that …