Arsenal technical director Edu was, in part, responsible for the signing of Willian (Picture: Sky Sports)

Arsenal technical director Edu has refused to accept his decision to sanction the signing of Willian was a mistake in the wake of the former Chelsea winger terminating his contract less than halfway into a three-year deal.

It was anticipated that a player with vast Premier League experience would slot in seamlessly to Mikel Arteta’s side and, after an encouraging debut against Fulham, during which Willian registered three assists, the signs were promising.