Arsenal are closing in on the signing of midfielder Mikel Merino from Real Sociedad, with an agreement between the clubs now imminent. Merino is seen as the ideal player to join Mikel Arteta’s midfield this summer, and he has turned down interest from Barcelona and Atletico Madrid to join the Gunners. Arsenal have now agreed personal terms with the 28-year-old, and a formal offer has now been made, with a deal expected to be agreed soon. Real Sociedad have also found their replacement, and it is a player Arteta tried to bring to Arsenal two years ago. Arsenal close in on Mikel Merino, Real Soc…