Sir Alex Ferguson says Roy Keane had lost the respect of his team-mates when he was forced out of Manchester United.
The former manager has used his new autobiography to claim Keane, now a pundit, "thought he was Peter Pan" by the time the pair fell out in 2005 and that his departure "was the best thing that could have happened" to United.
The book, due to be published on Thursday, does not spare Wayne Rooney - "not the quickest learner" - or David Beckham and confirms Ferguson was twice offered the England job as the recently retired Scot settles some old scores.
His animosity towards Keane has shown no sign of subsiding in the eight years since their row erupted.
Their relationship began to fracture as the midfielder became increasingly outspoken about his team-mates and finally broke down when he gave an explosive interview to the club's TV channel.
The MUTV interview has never been aired but Ferguson claims Edwin van der Sar, Paul Scholes and Ruud van Nistelrooy were among the players who walked out when shown it privately.
The 71-year-old recalls Keane and Van Nistelrooy having to be pulled apart in a separate incident: "His [Keane's] eyes started to narrow, almost to wee black beads. It was frightening to watch, and I'm from Glasgow."
But after the MUTV interview, Ferguson says he could not get Keane out quickly enough. He told assistant, Carlos Quieroz, at the time: "He needs to go, Carlos. 100 per cent. Get rid of him."
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