Arsenal are winning the reace to sign Real Sociedad midfielder Mikel Merino, and they are beating off stiff competition for his signature. Merino has been identified by Mikel Arteta as a midfielder who can strengthen his options in the middle of the park, bringing a strong ball-winning ability as well as leadership and experience. The 28-year-old is also wanted by La Liga sides Barcelona and Atletico Madrid, and having returned to Spain after a brief spell in the Premier League at Newcastle earlier on in his career, the Spain international could have been tempted to remain in his home country….