(LtoR) Alexis Tsipras, the leader of the left-wing Greek party Syriza, German European MP Franziska Keller aka Ska Keller, co-candidate for the European Commission presidency, top candidate of the German Social Democratic Party (SPD) for the 2014 European elections Martin Schulz, candidate for the centre-right European People’s Party (EPP) Jean-Claude Juncker, Members of the Alliance of Liberals and Democrats for Europe (ALDE), including group leader and Belgian member of the European Parliament Guy Verhofstadt, are pictured before a debate on May 15,2014 at the EU Headquarters in Brussels. AFP PHOTO/JOHN THYS