How Lionel Messi is 'dictating Barcelona transfer policy' with his views on Mesut Ozil, Philippe Coutinho and Antoine Griezmann

Lionel Messi extended his stay at Barcelona until 2021 this weekend - and his influence does not stop once he leaves the pitch.

The Argentine superstar will see out his playing days with the Catalan club after finally agreeing terms on a new deal.

But according to reports in Spain, he is having an increasing influence on matters off the field.

Having sold Neymar to Paris Saint-Germain in the summer, Barcelona are looking to strengthen their ranks.

Chief among their transfer targets are Arsenal's Mesut Ozil and Atletico Madrid's Antoine Griezmann .

But Messi has reportedly told his Nou Camp bosses not to sign either player.