In the past couple of years, a number of reports have suggested that club's sponsors have tried to help fund the biggest possible transfer deals.
The biggest clubs in world football are involved within multi-million sponsorship deals with the giant brands around the world.
The likes of Nike, Adidas and Puma are all on the shirts of some of the top clubs and, consequently top stars, on the planet.
So, which stars have the sponsors tried to lure to the clubs they have invested in?
Warning: The name Lionel Messi may feature in this top five.