By Toby Sterling THE HAGUE (Reuters) - The chairman of the Eurogroup said on Tuesday Greece was on track to default at midnight and Athens' stance towards its creditors would have to change before its euro zone partners could consider any additional financial assistance. Speaking after an emergency conference call between the currency bloc's finance ministers, Jeroen Dijsselbloem said a last minute request by Greek Prime Minister Alexis Tsipras to extend Greece's bailout programme had fallen on deaf ears.
