You can vote for any United player, but here are a few reminders of what some players have achieved during their time at Old Trafford:
Sir Bobby Charlton
How do you define greatness? How do you achieve it? And how do you choose between one great and another?
These are all questions you’ll need to wrestle with when you join Inside United and ManUtd.com's quest to determine the 10 greatest Manchester United players of all time. But be quick because voting closes at midnight UK time on Sunday 16 January 2011.
You can vote for anybody who's ever pulled on a United shirt, but over the past month we've run 20 features on players we suspect may figure prominently in the voting. Revisit these features by clicking on the links on the left.
Then, vote online and you’ll be entered into a draw to win a copy of The Official Illustrated History of Manchester United, signed by Sir Alex Ferguson. All you need to do is login to the website (or register if you’ve not done this before) and submit your top three players in order of greatness (ie the greatest first), by entering their first name and surname. We’ll then collate all the entries, tot up the scores, and list the top 10 – in order