Wayne Rooney reveals the ‘biggest mistake’ Mikel Arteta has made at Arsenal

Wayne Rooney before Arsenal’s Champions League clash against PSV (Picture: Getty)Wayne Rooney has revealed the ‘biggest mistake’ Mikel Arteta has made during his time in charge of Arsenal.Barring a miraculous comeback in the Premier League title race or a first-ever Champions League win, Arsenal will go a fourth successive season without a trophy under Arteta.The Gunners have repeatedly challenged for the title over the past three years, twice finishing just behind Pep Guardio