Arsenal have been unusually quiet in the transfer window, with Riccardo Calafiori the only signing the Gunners have made this summer. Signed from Bologna after a breakout year with the Serie A side coupled with an excellent Euros with Italy, the 22-year-old defender has brought a lot of excitement to north London with his arrival, with William Saliba already impressed by Calafiori. Able to play left-back and centre-back, the former AS Roma academy star will add depth and quality to two key positions Arsenal had needed heading into the new season, with Calafiori’s skillset one of the most excit…