Sir Alex Ferguson challenges Man Utd to win three successive titles

Sir Alex Ferguson challenges Manchester United to go on and win three titles in a row as he steps down as manager.

The Scot will retire at the end of the season, to be succeeded by David Moyes, after 26 years in charge and was speaking ahead of the team's victory parade with the Premier League trophy.

Ferguson twice led his team to three successive league titles - between 1999 and 2001 and from 2007-2009.