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Roy Keane returning to manage Sunderland would be a "great fit" according to Martin O'Neill.

Keane has been heavily linked with the managerial vacancy on Wearside. He had plenty of success in the post between 2006 and 2008.

He led them to the Championship title and then kept them in the Premier League before departing in December 2008.

Now, with the Black Cats aiming to finally clinch promotion after four seasons in League One, Keane has emerged as a clear front-runner to replace Lee Johnson.

Speaking about a potential return during his punditry duties on Friday, Keane said: "I’ve got no control over that, so no comment.

"I’ve made that clear over the last few years I’d like to go back into [football] as a manager but of course a club has to want you.

"You have to want that club and just as important the contract has got to be right so we will see how things take shape over the next few days."

Responding to the possibility of Keane being back in the Stadium of Light hotseat, O'Neill has backed his old pal to succeed.

O'Neill, himself a former Sunderland boss, told the Times: “It’s splendid news.

“It’s a great fit because Roy had success there before.

“From my experiences of working with Roy, I would