European stocks slide as Greek uncertainty returns

Europe's main stock markets slumped on Tuesday as market uncertainty resurfaced over Greece reaching a debt deal with its EU-IMF creditors and the eurozone chief called on Athens to be "realistic". London's benchmark FTSE 100 slid 1.03 percent to close at 7,030.53 points, with investor outlook also taking a knock from disappointing British growth data ahead of next week's general election. Greece has been trying to negotiate a deal that would unlock 7.2 billion euros ($7