Spanish Economy Minister Luis de Guindos (L) walks behind European Central Bank (ECB) President Mario Draghi (C) and Eurogroup Chairman Jeroen Dijsselbloem at a euro zone Finance Ministers meeting (Eurogroup) in Brussels March 9, 2015. Euro zone officials played down plans submitted by cash-strapped Greece to its international creditors in a bid to secure fresh funds, a day after Athens' outspoken finance minister irked EU partners by raising the prospect of a referendum. REUTERS/Yves Herman (BELGIUM - Tags: POLITICS BUSINESS)