The future of Greece in the euro zone is once again in doubt as creditors and Athens cannot agree on debt relief for the troubled economy.
The outspoken German Finance Minister Wolfgang Schauble told the German broadcaster ARD that in order to cut its debt, Greece would have to leave the euro zone.
Similar calls were made across the largest euro economy, where elections will be held after the summer. The German pro-business party FDP (Free Democratic Party) also said Thursday that Greece should leave the euro zone and then receive debt relief.
The question of debt relief has been the biggest sticking point in the course of the third bailout program, totaling 86 billion euros ($92 billion). The International Monetary Fund has pressured European creditors from the start to make the Greek debt more sustainable. But European leaders are reluctant to offer Athens significant relief before the program comes to an end next year and not before they have overcome the heavy political calendar.
"Germany has been against giving something significant before the election and the end of (the Greek bailout) program," Athanasios Vamvakidis, global head of G10 forex strategy at Bank of America Merrill Lynch, told CNBC over the phone.
Greece has already received some short-term measures that alleviate its debt burden, but at the moment it is stuck in negotiations with creditors, who refuse to provide significant relief for the medium to long-term without Athens legislating measures that will ensure financial stability after the bailout program.
"The German pressure is part of these negotiations," Vamvakidis noted. "There will be more headlines, more risks (that Greece will leave the euro) until Greece runs out of money. This is when they will reach an agreement."