Arsenal look set to end the summer transfer window with a flourish as Edu and Mikel Arteta look to add the finishing touches to their squad. In terms of incomings, the Gunners have signed Riccardo Calafiori from Bologna and are now set to add Real Sociedad’s Mikel Merino to their ranks. Arsenal are reportedly also closing in on a deal for Eddie Nketiah to join Nottingham Forest, while Charlie Patino is joining Deportivo La Coruna. Now, Sky Sport Germany journalist Florian Plettenberg has reported that the Gunners have positioned themselves to pounce on a forward whose club is in talks with a r…