Roy Keane has claimed he was the tenth choice for the Celtic manager's position this summer.

Earlier this week, the Republic of Ireland assistant said he had turned down the chance to manage the Premiership champions after being offered the role by the club's majority shareholder Dermot Desmond.

Promoting his new autobiography Roy Keane: The Second Half, the 43-year-old said the Hoops hierarchy didn't show how much they wanted him to replace Neil Lennon.

Keane ruled himself out of the running on June 2 before becoming Paul Lambert's assistant at Aston Villa on July 1.

Ronny Deila was named as the new Celtic boss on June 6.

When asked whether he would ever take the Celtic job in the future, Keane said: "I think you have to be open-minded.

"With Celtic I was probably about 10th choice. I've heard on the grapevine that one or two other people turned the job down, which wasn't an issue for me.

"At the time the negotiations didn't go the way I'd hoped they would have gone but I'm not sitting around waiting for people to lose their jobs."

In the book the former Manchester United midfielder claims he was made aware the identity of his backroom staff would have been non-negotiable and says it made him question whether he had the full backing of the board.

He said: "They had already picked the man who would be my assistant and they were insisting on him.

"It didn't scare me off but it did get me thinking. It wasn't an ideal start. Were they doubting me already?"

Despite his initial rejection, he could have been persuaded had the club shown a different attitude to talks.

He added: "Had Celtic shown enough in their negotiating, 'we'll move this, you can take that' - a bit of give and take - I might have hesitated.

"I felt powerful saying: 'No'. I felt good. But I wondered if I was making the right decision. Right job, wrong time."