Pretoria - Despite having won all their matches so far in regulation play, Argentina's goalkeeper Sergio Romero says his team is studying Germany's penalty techniques ahead of their World Cup quarter final on Saturday.

Diego Maradona's side is hoping to avoid a repeat of the 2006 quarterfinals, when Germany beat Argentina 4-2 in a shootout.

Jens Lehmann stopped spot kicks from Roberto Ayala and Esteban Cambiasso that day after consulting a cheat sheet of the Argentine penalty takers and the direction they usually took their kicks.

Romero said Monday that was a "smart move" by the Germans, and said Argentina has copied that tactic by studying videos of how their opponents take penalties.

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