Arsenal are close to landing their second big signing of the summer transfer window according to transfer expert, Fabrizio Romano. The Gunners have moved quickly after the Euros ended to make sure they land new players. The signing of Riccardo Calafiori was completed last week and since then, attentions have turned to adding players in midfield and attack. As we already know,Arsenal have agreed terms with Mikel Merino and he is now simply waiting for a deal to be done between both clubs. And in further good news for Arsenal fans on the Merino front, Fabrizio Romano has now suggested that the t…