Sunderland Chairman Niall Quinn said: “First of all on behalf of everyone here I would like pay thanks to Roy Keane for all his hard work in progressing this Club, lifting its status and growing its worldwide profile.
“Roy deserves huge respect for his contribution and the manner in which he guided the Club from the depths of The Championship back to the Premier League. His winning mentality and singled mindedness were just what this Club needed when Drumaville took over shortly before his arrival.
“Roy’s decision to stand aside and allow someone else to take charge of the next chapter sums up his desire to always do what is best for the Club. Even in his departure he has been more concerned for the welfare of the players and his staff than himself.
“The Board has reluctantly accepted his decision and wish him and his family well for the future.”
Roy Keane added: “I would like to thank my staff, players, Niall Quinn and in particular the fans for their support during my time at Sunderland and I would like to wish the Club every success in the future.”
