Which country does boxer Vitali Klitschko come from?

Vitali Volodymyrovych Klitschko (born 19 July 1971) is a Ukrainian politician and former professional boxer. He currently serves as Mayor of Kiev and head of the Kiev City State Administration, having held both offices since June 2014. Klitschko is a former leader of the Petro Poroshenko Bloc and a former Member of the Ukrainian Parliament. He became actively involved in Ukrainian politics in 2005 and combined this with his professional boxing career until his retirement from the sport in 2013.

As a boxer, Klitschko is a three-time world heavyweight champion, the second longest reigning WBC heavyweight champion of all time, has the fifth longest combined world championship reign in history at 2,735 days, the third longest individual WBC heavyweight title streak of all time at 9 consecutive defenses and the 4th longest combined title streak in the modern heavyweight history at 15 title bouts.

Standing at 2.01 metres (6 feet 7 inches), Klitschko was renowned for having exceptional ring dominance. With an 87% knockout percentage, he holds one of the highest knockout-to-fight ratios of any world champion in heavyweight boxing history, while also possessing a highly durable chin. His two losses came via a shoulder injury and a deep cut above his eye, both of which were recorded as stoppages rather than outright knockouts; in both fights he was leading on the judges' scorecards.