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Having gone through the list, we look at some names and wonder if they could come back and help win another title. Well, Ryan Giggs hasn't gone anywhere just yet.
Having had a spell under Manchester City at youth level, Giggs was offered a trial at Manchester United, and that's where the love affair began.
Since joining the youth academy in 1987, Giggs has been all RED.
He has played a total of 886 games, 620 in the league, scoring a goal in every single season of the Premier League.
Giggs will remain a United fan. His success at the club is unmatched, having won 12 league titles, four FA Cups and two Champions League medals plus countless other titles, a total of 33 winners medals.
He might be 37 years old, but the desire to win is like that of a 10-year-old: Hungry for success, passionate and always ready to turn up on the day.
A No. 11 with distinction, a rare breed of one-man club player, whose set the benchmark at United, an example to the ever-growing youth force at Carrington, a fan and a mentor for all.
After playing your entire career for one club winning it all, is it possible to have any love for anything else?