Arsenal have announced the signing of Riccardo Calafiori from Bologna. The Gunners were keen to strengthen the left side of their defence since before the window even opened, and they were linked with a number of names. Calafiori, however, became Mikel Arteta’s top target this summer, and after weeks of negotiations with Bologna, Arsenal managed to get the deal over the line. The Premier League runners-up should be really happy with this signing. Why Riccardo Calafiori picked Arsenal over Real Madrid and JuventusCalafiori was a wanted man this summer. The Italian had an outstanding season for …