Leo Messi's future could have a domino effect throughout football, and one of the players who could be affected most is Kylian Mbappe who has been linked with Real Madrid for years. 

Mbappe still hasn't renewed his contract at Paris Saint Germain and it's believed that if he doesn't sign a new deal by the summer, Real Madrid could swoop in and try to bring the Frenchman to the Spanish capital.

The hierarchy at Real Madrid have decided to bide their time until Mbappe is available and PSG decide to sell.