World Heavy Weight Boxing Champion and one of the leaders of Ukrainian opposition Vitaly Klitschko (L) takes part in an opposition rally 'Rise up Ukraine!' in the center of Kiev on May 18, 2013. Protestors demanded to free jailed former Ukrainian prime minister and leader of the opposition Yulia Tymoshenko and others political prisoners. AFP PHOTO/ SERGEI SUPINSKY
Credit: SERGEI SUPINSKY
Vitali Klitschko , an opposition leader and former world champion boxer, visits the barricade on Hrushevskoho street in the morning to address protesters on January 23, 2014 in Kiev, Ukraine. Protests continue in Kiev, a day after three people were confirmed killed during the uprising that began as protests against the Ukrainian President Viktor F. Yanukovich snubbing the European Union free trade offer for a Russian offer.
Credit: Etienne De Malglaive
Vitali Klitschko of Ukraine celebrates infront of Albert Sosnowski after winning the WBC Heavyweight World Championship fight against Albert Sosnowski of Poland at the Veltins Arena on May 29, 2010 in Gelsenkirchen, Germany.
Credit: Lars Baron
Vitali Klitschko, Chairman of the UDAR Ukrainian opposition party, arrives to speak at a press conference along with Ukrainian opposition politician Arseniy Yatsenyuk at the Reichstag on February 17, 2014 in Berlin, Germany. Klitschko and Yatsensuk met with Chancellor Merkel earlier in the day and are in Berlin in an effort to convince the European Union to impose sanctions on Ukraine.
Credit: Sean Gallup
Vitali Klitschko, the reigning world heavyweight boxing champion and leader of opposition party the Ukrainian Democratic Alliance for Reform, gives a thumbs up to a supporter on Independence Square on December 7, 2013 in Kiev, Ukraine. Thousands of people have been protesting against the government since a decision by Ukrainian president Viktor Yanukovych to suspend a trade and partnership agreement with the European Union in favor of incentives from Russia.
Credit: Brendan Hoffman
Vitali Klitschko of Ukraine celebrates his victory of the WBC heavyweight World Championship title fight against Dereck Chisora of the UK on February 18, 2012 in Munich, Germany.
Credit: Alexandra Beier
In this photo provided by the German Government Press Office (BPA), German Chancellor Angela Merkel speaks with Ukranian Politicians Julia Timoschenko Vitali Klitschko during the annual EPP congress on March 7, 2014 in Dublin, Ireland. The European People's Party (EPP) is gathering over two days to select their candidate for the next European Commission President.