Arsenal have now confirmed the signing of Mikel Merino from Real Sociedad, after weeks of negotiations. Merino has signed his Arsenal contract, which will run until 2028 with an option to extend it by a year, and the 28-year-old will hope to make an instant impact in North London. Real Sociedad manager Imanol Alguacil highlighted Merino’s importance to his side over the last six years, and his experience will come in useful in a relatively young Arsenal squad. The Spaniard will join as one of the older players in the starting XI, and one of Mikel Arteta’s oldest signings. Whilst this is a surp…