London: Roy Keane's war of words with Alex Ferguson continued on Thursday as the Manchester United legend admitted he may never forgive his former manager for criticising him. Keane has used his updated memoir 'The Second Half' to slam Ferguson, who lifted the lid on his differences with Keane and David Beckham among others in his own autobiography last year.


Alex Ferguson 

And the 43-year-old, who accuses Ferguson of being "childish" in his dealings with him towards the end of his Old Trafford career, was once again pulling no punches at the official launch of his book in Dublin, broadcast on Sky Sports News. Asked if he would ever forgive the former United boss, Aston Villa assistant manager Keane said after a pause: "Good question.