EU and IMF officials have given euro zone governments a positive assessment of Greece's request for a new bailout, a source close to the matter said, making it likely they will agree on Saturday to open talks on lending Athens tens of billions of additional euros. Experts from the European Commission, European Central Bank and the International Monetary Fund spent Friday reviewing the Greek case for aid and proposals for economic reforms from Prime Minister Alexis Tsipras that will be conditions for any loans. The positive evaluation, along with a conclusion that Athens currently needs some 74 billion euros to meet its obligations, will form a key part of discussions among euro zone finance ministers when they meet in Brussels at 3 p.m. (1400 BST).