Arsenal appear to be edging closer to the signing of Mikel Merino from Real Sociedad, and there has now been a major development. Mikel Arteta is keen to add Merino to his squad, but the Spain midfielder was also coveted by Barcelona. However, it now seems that Arsenal are closing in on their target. Merino is of interest to both Arsenal and Barcelona given his physicality, experience and technical security in the middle of the park, with both teams aiming to add to their midfield. It now appears that Merino has agreed a move to Arsenal with a deal nearing completion, and Barcelona had little …