Sunderland chief executive Peter Walker has resigned after 10 years with the club.

Walker, who has been chief executive since 2004, will formally step down towards the end of the year.

He wanted to leave the position when the Drumaville consortium, fronted by Niall Quinn took over the club two years ago but the former Republic of Ireland striker convinced him to stay.

Quinn, who is the club's chairman, said: "We successfully talked Peter out of leaving about 18 months ago as I really needed him to help us during the important and transitionary period after the takeover of the club by Drumaville.

"I have had to reluctantly accept his decision on this occasion but for the record, although he is not one to look for credit, I think supporters should know of the important work he has done behind the scenes for this club."

Walker also insisted there was no acrimony in the parting and said he was taking up a new position at kitchen manufacturer Omega PLC, where he has had a non-executive role for the past two years.

"I will be sad to leave because of the people but I am sure that the professional team at Sunderland , both on and off the pitch, will take the team from strength to strength.

"I am leaving the club in an excellent position but think the time is right for me personally to broaden my horizons and accept a challenge in a new industry," said Walker.