Antoine Griezmann has signed a new contract with Atlético de Madrid until 2019, according to L'Equipe. Source
However, the information contains a contradiction since on the day of his arrival at Atlético, the club announced that his contract was extended until 2020. Therefore, what L'Equipe is referring to is the signing of a new contract with better conditions but a shorter duration.
Atlético de Madrid denied the existence of a new contract for Griezmann, an improvement in the economic conditions, and even more so the reduction of the commitment by one year, according to AS.