Lionel Messi, FC Barcelona's Argentine star, has finally signed his new contract with the club until 2021. With the signature he has ended all types of speculation which sprang up in recent months. Previously he might have been able to walk away for nothing this summer.
The reason it took so long for Messi to sign the deal agreed in July? Because both sides decided to re-write the deal to adapt to the new footballing market, which changed after Neymar signed for PSG for a world record 222m euros.
One of the changes made was Messi's release clause going from a would be 300m euros to 700m. Eventually he put pen to paper on November 25, 2017.