Ronaldinho
Position: Striker
Club: Paris Saint-German
Age: 23
Estimated value: £10m
The Brazilian made such an impact in his youth that Paris Saint-German broke the world record transfer fee for a teenager to bring him to the club.
An international regular, ´Little Ronaldo´ cemented his reputation as one of the world´s most dangerous players during Brazil´s victorious 2002 World Cup campaign.
After returning late from the winter break, he has since fallen out with his club and looks certain to move on this summer.
Ferguson could have a huge fight on his hands persuading him to move to United with Real, Barcelona, AC Milan and Inter all chasing his signature.