Former Greek finance minister Yianis Varoufakis attends a parliamentary session at the greek parlament in Athens on July 15, 2015.   Greece gears up for a crucial parliamentary vote on draconian reforms demanded by eurozone creditors in exchange for a huge new bailout, in what could be Prime Minister Alexis Tsipras's toughest political test yet.   AFP PHOTO/ LOUISA GOULIAMAKI        (Photo credit should read LOUISA GOULIAMAKI/AFP/Getty Images)