The trainer was furious about the premature unveiling of his first XI - a longstanding problem - suggesting that the representative of one of his men is leaking information
Hours before the game, Joachim Low's exact starting lineup was published by German newspaper Bild, and quickly spread through various media and social networking sites. And following the match, the head coach was not amused, claiming a mole within his camp was responsible.
"I cannot explain how the list was leaked. Maybe a player spoke with his agent," Low said to German TV station ARD.
Low made four changes to his previous XI for the Greece match, with Miroslav Klose, Marco Reus, and Andre Schurrle starting in three of the four attacking positions. And Low lamented the fact that his team could not take the Greeks by surprise with their new-look attacking line-up.
"It's not nice when [the lineup] is released, because we want to be unpredictable," he explained.
This is not the first time that the Bundestrainer has had his plans unveiled ahead of schedule. Before Germany's group stage opener against Portugal, German newspaper Express revealed that Mario Gomez would start ahead of Klose in attack.
Additionally, last November, the trainer had a similar problem when Schurrle tweeted that he would miss a friendly against Netherlands due to a bout of flu.
In the end, the Ethniki could not use their information to any great advantage on Friday, and the Nationalelf advanced almost effortlessly to the semifinals.
However, with every match becoming increasingly difficult, the trainer will be keen to eradicate this issue.