The opening of Europe's financial markets tonight will unleash a battle that may decide the fate of the single currency.

Riots over harsh new austerity measures left three bank workers dead and engulfed the streets of Athens overnight.

A general strike in Greece over the next 24 hours is expected to paralyse the country.

Greece and the wider eurozone scrambled back from the brink of disaster again on Friday as the outline of an IMF/eurozone rescue package emerged.