The French striker signed for Atlético when he was just 23 after a great season at Real Sociedad. Right from the word go Simeone worked on Griezmann's defensive abilities who wasn't used to working with the rest of the team. Simeone achieved it.
This ability to sacrifice was acquired in his time at Atlético. He also had the ability to play in a more central position and to be able to lead the lethal counter-attacks that he was the star of at Atleti.
He maintained a remarkable goalscoring ability with Simeone also as a mentor. In short, the Atleti manager managed to improve the Frenchman considerably in the five years he spent there.
And now, on his visit to the Wanda, he must face his teacher. Further beyond what happened in the stand, Griezmann, who is always praised by Simeone, has a soft spot for the manager that influenced his game the most.
But for the 90 minutes, they aren't friends. Atleti and Barcelona have a lot at stake in a match that could be damaging for the loser. A draw, however, would benefit Real Madrid if they manage to beat Alavés.