Ahead of tonight's Manchester derby we take a look at five players to have played for both clubs.
Normally, the Old Trafford derby may see United aiming to pick up three points in order to push for the title, but this evening's game is somewhat different.
Visitors City will be looking to continue their recent good form at the home of their arch-nemesis as they look to remain alongside with title rivals Chelsea and Liverpool, whereas the game has become more of a matter of pride for the home side as they struggle for form.
Whatever the scenario and whatever the position of the clubs in the league table, the game is always fast and furious and the rivalry aways sees tensions run high, both on and off the field.
It takes a brave man to pull on the shirt of City or United, should they have previously played for the other.
We've compiled a shortlist of five men who've been ballsy enough to do so.