Greek Prime Minister Alexis Tsipras speaks with German Chancellor Angela Merkel (L) and French President Francois Hollande at a euro zone leaders summit in Brussels, Belgium, July 12, 2015. Euro zone leaders will fight to the finish to keep near-bankrupt Greece in the euro zone on Sunday after the European Union's chairman cancelled a planned summit of all 28 EU leaders that would have been needed in case of a "Grexit". REUTERS/Stringer/Pool - RTX1K30N