Klitschko brothers 5 months & 13 days. Vitali retained the WBC Heavyweight Championship until 15 December 2013, relinquishing his belt in pursuit of his political aspirations in his native Ukraine. The Klitschko brothers jointly run the professional boxing promotion companies ""K2 Promotions"" and ""K2 East Promotions"", as well as the ""Klitschko Brothers Fund"", a charity organization. They appear together on German TV shows and commercials, have a website shared between them, and support each other's training and fights. After Vitali's retirement, Wladimir continued to reign as champion & successfully defend all remaining title belts except for the WBC belt. He eventually lost
Vitali Klitschko vs. Dereck Chisora Vitali Klitschko vs. Dereck Chisora Vitali Klitschko vs. Dereck Chisora billed as Showdown in Munich was a heavyweight championship fight for the WBC title. The bout took place at the Olympiahalle in Munich, Germany on 18 February 2012. Klitschko won via a unanimous points decision after the full twelve rounds to retain his title. Vitali Klitschko had first become a heavyweight champion in 1999, when he picked up the WBO title for knocking out Herbie Hide. In his third defence against Chris Byrd, Klitschko was forced to retire from the fight with a shoulder injury at the end of the