Austrian media have accused Germany coach Julian Nagelsmann of telling goalkeeper Kevin Trapp to feign injury during their clash on Tuesday night.
The two nations faced off in a friendly in Vienna, with the hosts winning 2-0 thanks to goals from Marcel Sabitzer and Christoph Baumgartner.
Leroy Sane also saw red for the Germans for pushing Philipp Mwene as things went from bad to worse for Nagelsmann's side, after they also lost 3-2 to Turkey on Saturday.
However, the 36-year-old - who only took on the role in September and has won just one of his four games - could be in even deeper trouble after he was accused in the Austrian media of giving Trapp instructions to fake an injury.
The alleged incident came shortly after Sane received his marching orders in the 49th minute, with Nagelsmann in need of tactical reshuffle.
In a clip of the incident, Nagelsmann appeared to be shouting in the direction of Trapp, before he held the back of his leg and gestured towards the ground.
Shortly afterwards, Trapp, who was taking a goal kick, sank to the ground.
As Germany's medical staff then ran onto the pitch to tender to Trapp, Nagelsmann was seen speaking and relaying instructions to Thomas Muller.
A sheet of paper was also passed to Benjamin Henrichs and onto Kai Havertz, with the Arsenal playmaker playing slightly further forward during the rest of the game.
ORF, the Austrian broadcaster who were showing the game, were quick to pick up on the alleged incident.
Herbert Prohaska - an 83-cap Austrian international who was working as an expert for the channel - slammed Nagelsmann as he said: 'This action is pathetic. This is weak for all of Germany. You just do not do that. As a trainer, you have to be able to provide information in a short
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