Roy Keane believes Sir Alex Ferguson is still pulling the strings behind the scenes at Manchester Utd despite retiring as manager in the summer.
Keane said of Ferguson, now a director at United: "Everything is about control and power. He's still striving for it now even though he's not manager. There's massive ego involved in that."
Keane, who left United in 2005 after a fall-out with Ferguson, was speaking in an ITV4 documentary called 'Keane and Vieira: The Best of Enemies' which airs on Tuesday night concerning his rivalry with former Arsenal skipper Patrick Vieira.
He said that his relationship with the former United boss is now "non existent".
The Irishman even took issue with Ferguson praising him in his recently released autobiography for "covering every blade of grass" in the 1999 Champions League semi-final second leg against Juventus.
Keane added: "Stuff like that almost insults me. I get offended when people give quotes like that about me. It's like praising the postman for delivering letters."
Keane admitted he was upset when his United career came to an abrupt end over a candid interview he gave to the club's in-house television station criticising his team-mates.
He said: "Of course I was upset: I did shed a few tears in my car for about two minutes.
"But I also told myself I had to get on with my life.
"I walked out with nothing, I had no club lined up and I was injured.
"I told David Gill I had been injured playing for Man United.
"I could have played for Manchester United easily for another couple of years."
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