Greece's Tsipras digs in against bailout

By Renee Maltezou and Alastair Macdonald ATHENS/BRUSSELS (Reuters) - A defiant Prime Minister Alexis Tsipras urged Greeks on Wednesday to reject an international bailout deal, wrecking any prospect of repairing broken relations with EU partners before a referendum on Sunday that may decide Greece's future in Europe. Less than 24 hours after he wrote a conciliatory letter to creditors asking for a new bailout that would accept many of their terms, Tsipras abruptly switched back into combativ