Germany on Monday angrily denounced Greek Prime Minister Alexis Tsipras for accusing eurozone partners including Spain and Portugal of undermining his negotiations with Brussels, saying he had been out of line.
"I can only say that according to European standards that was a very unusual foul," Martin Jaeger, the spokesman for German Finance Minister Wolfgang Schaeuble, told reporters.
"We don't do that in the Eurogroup. It is not the done thing."