Former Manchester United star David Beckham has responded to criticism in Sir Alex Ferguson's autobiography by singing the praises of his former manager in his own book launch this afternoon.

The Scot criticised Beckham in his book which was published last week, claiming that the former United player thought that he had become bigger than the club.

Ferguson and Beckham infamously fell out after a changing room row which resulted in the latter taking a football boot to the face, and eventually transferring to Real Madrid.

But this afternoon, the former England captain had the opportunity to respond to the remarks made by his former boss when he hosted a Q&A session about his new book which was streamed live over Facebook.

When asked about his relationship with Ferguson, Beckham said: "We looked at him as a father figure.

"I was lucky to play under Sir Alex Ferguson for twelve years and he's truly the best," he continued, "I'm not going to sit here and be negative about a man who let me play for my boyhood team."

Beckham launched his book this afternoon with an innovative new online book signing which exploited the use of social networking to reach out to over 30 million fans worldwide.

The 38-year-old, who ended his 20-year career at Paris Saint-Germain at the end of last season, has been looking into purchasing a Major League Soccer franchise in Miami.

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