FRANKFURT/ATHENS (Reuters) – European Central Bank President Mario Draghi has voiced unprecedented doubts about the chances of rescuing Greece from bankruptcy as Greek Prime Minister Alexis Tsipras was due to put forward last-ditch reform proposals on Thursday. Italian daily Il Sole 24 Ore quoted the ECB chief, under growing fire in Germany for keeping Greek banks afloat, as saying he was not sure a solution would be found for Greece and he did not believe Russia would come to Athens’ rescue.