Meanwhile Martin O’Neill, who Keane was assistant to in his last three roles, has backed the Manchester United legend to manage at the top level.
O’Neill told BBC Sportsound: “First of all, he’s got the personality, he was a massive player and an iconic figure in the game.
“People start to feel that strong-willed people do not change or adapt, or adopt a different attitude.
“All of these things take time, everyone is still learning and he has certainly got the capacity to do that, to motivate players absolutely. I’ve worked with him close hand.
“Has Roy Keane got the personality to manage at the very top? Absolutely.”