Fears that Greece could end up leaving the eurozone after elections later this month rattled European markets, with stock prices hammered, AFP said. Greek stocks sank more than 5%, while the Paris, Madrid and Milan exchanges fell more than 3%, and the euro hit a nine-year low on renewed concerns about the currency bloc. The specter of a Greek exit from the eurozone has reared its head again despite a plea by French President Francois Hollande on Monday for Greece to abide by its European commitments and the European Commission saying eurozone membership was irrevocable.