#5 David Beckham
David Beckham had already become the most popular player of his generation when he left for Real Madrid in 2003 following a rift with Sir Alex Ferguson. The fans were angered by their legendary no.7's sale, but what happened next makes you think whether to regret Beckham's departure or not.
Whatever happens, happens for the good. That dictum proved itself again as United brought in a more than worthy successor, an 18-year-old Cristiano Ronaldo who set the Premier League alight for the subsequent six years.
Returning to David Beckham, the Englishman did fail to replicate his success at Real Madrid, but then, why should we regret his sale?
Sometimes, our love for our favourites prevails over everything else, and that's what happened in Beckham's case. He might not have been at his belligerent best, but many fans pined to see those pin-point crosses and free-kicks at the Stretford End even after his departure. Ronaldo might have made us forget Beckham earlier than we expected, but undoubtedly, every United fan and player would have loved seeing the latter retire in the famous red shirt.