Question: What city ZDF in that aired the fight with a boxer who won a bronze at the 1991 World Championships ?

text: Vitali Klitschko
Television viewership -- Germany

Vitaly Vladimirovich 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 fourth-longest combined title streak in the modern heavyweight history at 15 title bouts. He held the WBO title from 1999 to 2000; the Ring magazine title from 2004 to 2005; and the WBC title twice between 2008 and 2013. Standing at , 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. Klitschko is the only heavyweight boxer to have reigned as world champion in three different decades. Along with Oliver McCall and Nikolai Valuev, he is also the only world heavyweight champion to have never been knocked down in any fight. Klitschko and George Foreman are the only heavyweight boxers in history to defend a world title after turning 40.
Date Fight Billing Viewership ( avg . ) Network
1 April 2000 Vitali Klitschko vs. Chris Byrd Klitschko vs. Byrd 9,790,000 Sat.1
8 December 2001 Vitali Klitschko vs. Ross Puritty Revenge Of The Brother II 7,390,000 Sat.1
23 November 2002 Vitali Klitschko vs. Larry Donald Klitschko vs. Donald 10,590,000 ZDF
11 October 2008 Samuel Peter vs. Vitali Klitschko Dangerzone 9,670,000 RTL Television
21 March 2009 Vitali Klitschko vs. Juan Carlos Gomez Universum Presents Boxing 10,880,000 RTL Television
12 December 2009 Vitali Klitschko vs. Kevin Johnson Klitschko Time 11,160,000 RTL Television
29 May 2010 Vitali Klitschko vs. Albert Sosnowski Fists Of Steel 6,710,000 RTL Television
16 October 2010 Vitali Klitschko vs. Shannon Briggs Thunderstorm 13,290,000 RTL Television
19 March 2011 Vitali Klitschko vs. Odlanier Solis Dr. Eisenfaust vs. La Sombra 10,980,000 RTL Television
10 September 2011 Vitali Klitschko vs. Tomasz Adamek Battle Of The 21st Century 9,510,000 RTL Television
18 February 2012 Vitali Klitschko vs. Dereck Chisora Showdown in Munich 12,880,000 RTL Television
8 September 2012 Vitali Klitschko vs. Manuel Charr Klitschko vs. Charr 8,750,000 RTL Television