Wladimir Klitschko world heavyweight champion) dominated heavyweight boxing, a period typically known as the "Klitschko Era" of the division. Klitschko was born in Semipalatinsk (now Semey), Kazakh SSR, Soviet Union (now Kazakhstan). His father, Vladimir Rodionovich Klichko (1947–2011), was a Soviet Air Force major general and a military attaché of Ukraine in Germany; he was also one of the commanders in charge of cleaning up the effects of the Chernobyl disaster in 1986 and was afterward diagnosed with cancer. Wladimir's mother is Nadezhda Ulyanovna. He is the younger brother of former WBC, WBO and Ring magazine heavyweight champion Vitali Klitschko, the current
Lennox Lewis vs. Vitali Klitschko title after passing on the chance to face the IBF's number one contender Chris Byrd. Instead, Lewis turned his sights on a possible match with Vitali Klitschko, who had become the WBC's number one contender after defeating Larry Donald by tenth-round technical knockout. In early 2003, however, negotiations for the fight fell through and Lewis began looking into a lucrative rematch with Tyson. The WBC ruled that a rematch with Tyson would be allowed on the basis that the winner would next defend their title against Klitschko. Tyson passed on the rematch, forcing Lewis to accept a less marketable fight