Alex Ferguson's football legacy

BIRMINGHAM, ENGLAND - FEBRUARY 10: Sir Alex Ferguson of Manchester United walks out during the Barclays Premier League match between Aston Villa and Manchester United at Villa Park on February 10, 2010 in Birmingham, England. (Photo by Laurence Griffiths/Getty Images)

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    Alex Ferguson's football legacy

CNN's Ben Wyatt looks at Alex Ferguson's legacy as manager with Manchester United.