Barcelona secured their place in the Copa del Rey final with a 1-0 second-leg win over Atletico Madrid which followed a wild 4-4 draw in the first leg.
Hansi Flick is being credited with masterminding the win after coming up with a plan for the game, according to Mundo Deportivo.
The German coach predicted the hosts would start off with patient, defensive approach and try to hit Barca on the counter-attack.
Flick therefore spent the last two training sessions before the game working on speeding up transitions and making it Pedri and Frenkie de Jong’s mission for the game.