Greek Prime Minister Alexis Tsipras said on Saturday his government was on the final stretch of negotiations with its international lenders on a cash-for-reforms deal that would not involve further pension cuts and harsh austerity. After four months of talks with its euro zone partners and the International Monetary Fund, Athens is scrambling for a deal that could release up to 7.2 billion euros ($7.9 billion) in remaining aid to avert bankruptcy as it remains shut out of bond markets.