The France global helped Atletico win the Europa League last night, netting twice in a 3-0 win against Marseille.
Atletico Madrid have won the UEFA Europa League final two times before tonight, in 2010 and 2012.
But, with Marseille's hopes of a direct route straight into the Champions League group stage only thwarted until the weekend, Garcia could feel very differently if the final round of Ligue 1 matches do not go in Marseille's favour.
Dimitri Payet prematurely got his hands on the Europa League trophy in the moments leading up to Marseille's defeat on Wednesday night and Reds fans are now terrified there's a curse.
"Griezmann today confirmed what he has been doing year by year", Simeone said after the game. He's made me into a better player and one of the best in the world.
When asked about the transfer speculation after the final against Marseille, Griezmann made it clear he felt this was not the right time to talk about his Atletico future.
"It was a dream of mine to win a trophy with Atleti, with Simeone and with my team mates", Griezmann added. Captain Gabi capped off the victory with a fine finish in the last minute after being set up by Koke.
The irrepressible Griezmann started and finished the move for his second, four minutes into the second half. The French side should have been ahead inside the opening four minutes with Payet feeding Valere Germain, who could only fire wide when through on goal.
Marseille fans were given a first-half warning over the stadium speakers to stop letting off flares and firecrackers or the game would be stopped.
Griezmann and Diego Costa will lead Simeone's attack as Atletico returns to Lyon, where it lost 3-0 to Dynamo Kiev in the final of the now defunct Cup Winners' Cup in 1986.