European Stability Mechanism Managing Director Klaus Regling speaks during a news conference at the Foreign Correspondents' Club of Japan in Tokyo, Japan, January 26, 2016. The head of the European Stability Mechanism (ESM) on Tuesday ruled out a haircut for Greek debt but said extending debt maturities and deferring interest are options that officials could use to make Greece's debt more manageable. REUTERS/Yuya Shino (File: 2016-01-26T053549Z_397577595_GF20000107273_RTRMADP_3_EUROZONE-GREECE.JPG )