German Finance Minister Wolfgang Schaeuble has warned that a Greek exit from the eurozone would damage the country, as well as the zone as a whole.
Speaking at a meeting with business leaders in Singapore, Mr Schaeuble said he did not think such a thing would happen and that there would be no state bankruptcy in Greece.
"Greece has to take a lot of very serious reforms and this will harm,” he said.
“Everyone is trusting that the Greek government is doing what is necessary."
Greece is locked in talks with the European Union, European Central Bank and International Monetary Fund on a new set of spending cuts and reforms in exchange for the next tranche of loans saving the debt-crippled country from bankruptcy.
Greece expects to agree a new austerity package with its lenders and for the EU and IMF to bridge their differences on how to cut the country's debt by the time EU leaders meet on 18-19 October, according to Greek Prime Minister Antonis Samaras.
"We do not see that there is any sense to speculate on Greece leaving the euro", Mr Schaeuble said. "That would be very damaging for Greece and the euro."