Keane is backed by Fergie

Sir Alex Ferguson today defended Roy Keane and claimed his captain had no case to answer over his premeditated revenge mission on Alf-Inge Haaland.

The Manchester United midfielder has caused a storm by admitting in his autobiography that he deliberately targeted the Norwegian in the Manchester derby in April 2001.

The Football Association have vowed to investigate Keane ' s description of the horror tackle which saw him sent off and Haaland has hinted at legal action against Keane as he has been beset by injury problems since that encounter.

However, United manager Ferguson insisted he had no problem with the revelations. He said: "I don't think there is anything wrong with the book and nothing for him to worry about."