It's the biggest poker game in history. On one side of the table, the dowdy, conservative German Chancellor, Angela Merkel, on the other, youthful, radical Alexis Tsipras, leader of the Greek left wing coalition, Syriza, which is expected to win increased support in today's Greek elections. Could ever a financial crisis have thrown up an odder couple? Eyeballing each other over the future of the eurozone. Waiting for the other to blink. 

   The stakes? Around four trillion – that's the likely cost of bailing out all of Europe's busted banks if there isn't a resolution to the eurozone debt crisis. And right now, there isn't one.