Arsenal have now announced the signing of Mikel Merino from Real Sociedad, after weeks of talks dragged on to delay the deal. Merino has been a long-term target for Arsenal, and Mikel Arteta convinced him to move to the Emirates instead of Atletico Madrid and Juventus. Arsenal have now confirmed Merino’s arrival, which puts an end to a six-year spell at Real Sociedad, in which he won the Copa Del Rey and played in the Champions League knockouts. The 28-year-old arrives with a lot of experience, and Merino has already shown he has the leadership qualities to support Arsenal’s younger players. T…